Jim Martin on Inquiry

Jim Martin on Inquiry

Is active learning an effective vehicle to train science inquiry mentors?

Walking along with you is far better than telling you “I’ll show you the way.”

ow should we prepare mentors of teachers who wish to learn how to engage their students in authentic science inquiry, to provide what they will need for the work they will do? Should we get them together and show them what to do? Or, engage them in active learning focused on mentoring, and respond to what emerges? I know from my various experiences in being trained that listening to a speaker, then watching from a distance as the speaker demonstrates an activity, does next to nothing for me. When I arrive to do the work I was trained for, I’m not sure where to start. There, on site, bright smiling face, but a little uncertain just what to do. When my training has me actually doing the work, I arrive on site ready to go; looking forward to doing the work. So, I think I’ll describe mentor training via, mostly, active learning.

What is mentor training via active learning like?

Since classroom teachers will probably find doing a first field trip on their own a bit daunting, we’d start the teacher/environmental educator mentors-in-training doing just that. They’ll do a training, more or less on their own. First, we’d group them in pairs, then have them move through three or four stations representing those that students would move through on their first field trip. Participants’ first job at this training will be to decide how to do the work at each of the stations, say, “Streamside Vegetation.” As they go, these mentors-in-training will share what they know about the station they are visiting, and how they would assist an inexperienced teacher to become comfortable doing that station.

At each station, there would be a poster board, Post-Its, and a felt pen. The board would have the name of the station on it, and the rest of the space for questions and comments. For this training, the questions and comments would relate to the work of mentoring inexperienced teachers as they go to a natural site to do the work at this station for the first time. As they work out the way they think the station would be best done, they will make comments on the Post-Its and place them on the board. As the concept clarifies itself, they might wish to move the Post-Its around to reflect this.

After they organize the Post-Its on the boards as they wish, they will decide on outcomes for that particular station, what the students who visit it will take away from their experiences. Then, they will decide how the station will be introduced to students. Hopefully, they will have clarified the purpose of and function of the station, and they can decide on a rationale, a mission statement of sorts, for that station. A training done this way, not a talking head, telling them about it, but an active way of discovering it for themselves. All of this will go to the board on Post-Its, or, if they are sure of what they’ve done, they would use the felt pen to mark off a heading and space for the Post-Its that go under that heading.

Then, they will organize themselves to do the work of the station, and do it. While working, they would engage in an interactive dialog as they move along; clarifying, suggesting, and making recommendations which emerge from their experiences at that station. When they’re finished, they may wish to modify or add to the Post-Its on the board. After completing this station, they will rotate to the next one, where they will repeat the process. As they go, they will add Post-Its of their own, rearrange them, and add a heading if they think it should be a permanent part of the board. They continue until they’ve completed the work at all stations. (This exercise was first introduced to me by Rebecca Martin, when she used it in a Salmon Watch teacher training. I call it a concept-induction exercise. Some call it an ideation exercise. It’s very effective. I’ve even used it to focus a meeting to plan a performance center in Vancouver, WA, where I live.)

What might mentors-in-training take away from this active learning exercise?

At the end, after all groups have visited all stations, the entire group will do a walk through the stations, pointing out curricular elements embedded in the environment, listing equipment that would be needed or helpful in doing the work, noting safety measures for particular parts of each station, sharing what they’ve learned, discussing the work to understand it better and suggest modifications. As part of this, they will review each updated poster board (which remained on station), and nail down their recommendations, etc. At the end, they will suggest next steps, which might be no change needed, or some further changes.

When this has been done, the mentors should be able to have moved inexperienced teachers to a place where they can, with time, become teachers who confidently move their students, via active learning in a natural environment, toward the knowledge, skills, and understandings they will need to respond to the effects of climate change effectively. The purpose of all these words.

jimphoto3This is a regular feature by CLEARING “master teacher” Jim Martin that explores how environmental educators can help classroom teachers get away from the pressure to teach to the standardized tests, and how teachers can gain the confidence to go into the world outside of their classrooms for a substantial piece of their curricula. See the other installments here, or search Categories for “Jim Martin.”

Jim Martin on Science Inquiry

Jim Martin on Science Inquiry

Can We Learn What Science Inquiry Does For Us? What To Teach; And How?

 

by Jim Martin

n a previous blog, a student, Maria, noticed a salmon fry darting toward a rock covered with periphyton, a thin colony of algae which supports microbes and invertebrates living in it. Her eye lit up as she became aware of it; a wonderful learning moment, the kind which lights up our brain.

How do you learn to recognize when Maria’s eye has noticed something, and made a conceptual connection with it? What experiences ought you have to recognize that moment and use it effectively? Then to follow up? How did we get here in the first place? We’re exploring the use of inquiries outside the classroom to discover how to use active learning effectively. And, while doing that, to discover and use the curricular content embedded in the world outside the classroom. How do we help teachers become comfortable with this?

Does what we teach reside solely in our curricular materials? 

We do inquiries; do we ever ask what inquiries do for us? One thing that student-directed inquiries do is to use the way our brain learns best, which should be driving our deliveries. When we begin a new learning, it will more than likely possess latent connections to previous conceptual learnings stored in associative memory in our brain. If we can organize a student’s environment so that this might happen, then we have set up an environment where conceptual learning will occur. Our brain is an autonomous learning machine when it encounters something interesting in the world about. We set this in motion when we organize a student’s environment so that a question will more than likely emerge from it. When this becomes part of the foundation our teaching is based upon, conceptual learnings become a normal product of our classrooms.

Some students, like Maria, will rather quickly note a connection between what they observe at the moment, and what they already know. These students, engaging what Lev Vygotsky described as a zone of proximal development, will provide, by what they say and do, the pieces of the puzzle for those who have not yet attained the new concept; not yet seen the connection between what they observe, and what they already know. Yet, whose brains already hold all of the relevant pieces. This capacity to see and make connections is something I’ve observed that all students will develop as long as they are in an environment where active learning is routinely engaged. Since self-directed inquiries stimulate our brain to engage in critical thinking and conceptual learnings, that is precisely what inquiries do for us. Build autonomous, thinking brains.

Does conceptual learning only occur when students engage curricular materials in our classrooms?

How do we get there, the place where autonomous, thinking brains develop? You have to know the things students will encounter as they learn, then direct them to those pieces which have the capacity to engage human interest. In the previous blog, we discussed the idea of a teacher in-service workshop in which teachers, environmental educators, and a regional environmental education center might be used to help classroom teachers become comfortable with science inquiry in a natural environment. In this pilot workshop, we posited starting with a science inquiry training in which teachers would engage concrete entities in a natural area. Those who I have worked with in workshops like this have always experienced the way that simply engaging teachers in particulars of the place they are in stimulates questions which are easily turned into effective inquiries.

Noticing something which catches your interest has a way of stimulating you to want to know more about it. Everything could end right there, and you might continue on your way. If, as you move along, you encounter another of the thing which caught your interest, you will notice it, and may even raise a question about it. This is the way your brain works when it is engaged in conceptual learning. We need to learn to use it routinely in our teaching. It leads to long-term conceptual understandings. Not items to recall on a test, but conceptual information which seems just common sense.

If you were a participant in the in-service workshop I mentioned above, and you encountered something interesting which raised a question in your mind, there would be teacher-mentors and environmental educators there to help you locate resources, etc., but not to tell you what to think and do to answer it. Your brain, not theirs, is the one that’s learning. (Likewise in our own classrooms; the students, not we, need to do the learning!) Then, there would be a follow-up on questions and/or insights entrained by the science inquiry process. (My own students would review and research more information than I could teach via a conventional deliveries.) The important thing is that much of what you find and process in your brain will remain as conceptual associative memory, available on demand. Even when, in your classroom in May, you ask students to recall what they learned when they did such and such an inquiry in October. It does work.

Maria went on to learn about the salmon fry and periphyton colonies she met while she was on site at the stream. Most of what she learned came from her observations in the real world, researching information about them on the web, and reading in the texts in her classroom. More learning than a teacher can deliver by teaching the whole class one piece at a time. The trick is to organize the work so that each student or group contributes a nice piece of the overall learning. Sharing brings it all together. Enough teachers, and schools, have successfully adopted active learning deliveries that we ought to be encouraging it in our schools, our districts, and our state departments of education.

Many classroom teachers don’t have a strong background in the science they teach. We, the classroom teachers, need to develop a systemic way to build a strong content background in the concepts that we teach. Formidable hurdle, but it can be done. Since I first started tracking it in the early 1970s, about half of U.S. teachers have had little or no college-level preparation for the content they teach. We’re assigned to teach it anyway because there’s no one else to do it; we’re coaches who need a full-time salary, our principal assigns us to teach it, etc. How would our tech sector do if they applied the same staffing model? For now, we are the ones who have to take up the slack. We need to work together to build our capacity to effectively engage our students in the excitement and comprehension of science in the real world. We may not solve the problem, but I know from experience that we can make a dent in it. We’ll take that up as we go along.

jimphoto3This is a regular feature by CLEARING “master teacher” Jim Martin that explores how environmental educators can help classroom teachers get away from the pressure to teach to the standardized tests, and how teachers can gain the confidence to go into the world outside of their classrooms for a substantial piece of their curricula. See the other installments here, or search Categories for “Jim Martin.”

What Can I Do Monday Morning?

What Can I Do Monday Morning?

 

50+ Simple EE Activities Across the K-12 Curriculum

 

GRADES
K-2

SCIENCE

Back to the Earth
Display food items such as a boiled egg, apple, peanut butter, bread, jelly, strip of bacon, etc.  Pictures can be used.  Ask students to identify the food items you have on display.  As the students respond, ask them to tell what their favorite food is.  From answers they give, let them trace two or three through their many forms back to the soil.  Example:

apple -tree-seed-soil
peanut butter-store-factory-peanuts-plant-soil
jelly-store-factory-berries-plant-soil
orange juice-store-factory-oranges-tree-seed-soil

As a follow-up, provide each student with drawing paper and crayons.  Ask them to draw a series of pictures showing each step of the cycle of a product from its soil origin to the consumer.  Post representative products on bulletin board.

Snail Spell

Read Snail Spell by Joanne Ryder.  Have the students fantasize “shrinking” to the size of an insect and write a descriptive paragraph, of their experience.

Flannel Beach Life
Cut out pictures of intertidal animals from calendars or a cheap field guide. Laminate pictures and use stick-on velcro to turn them into flannel board creatures. (You can also purchase a set of flannel patterns from the Seattle Aquarium). Use the flannel board to introduce the intertidal animals. If possible, have students act out the movements of each, for example, pretend to be anemones and wave arms as tentacles during high tide, cover up tight at low tide.

Garbage Gardens
Have students bring in an egg carton and empty halved egg shells from six eggs. Pierce the bottom of the egg shells and fill them with composted soil. Place the egg shells in the egg carton to keep upright. Plant various types of seeds in the egg shells. Make sure to label each student’s egg carton with their names and the types of seeds they planted. Extend the learning by creating experiments dealing with the effects of natural environmental variations such as light and water as well as “artificial” variations including the application of household hazardous wastes found in the classroom (check out areas around your sink for these products). — TGP

SOCIAL STUDIES

Nautical Neighbors
If there is a marina  area, take the class on a tour of it. Arrange a tour of a fishing boat, and have the skipper explain all the different equipment and the variety of jobs aboard the craft.

Seafood Survey
Many cultures depend heavily on food from the sea for their sustenance. Have students survey family members and friends about the types of seafood they like to eat. This can be graphed on the chalkboard as well. Follow up survey with a visit to a local fish market or grocery to look at varieties of fish and shell fish up close.

Getting Down to Basics
List all the items below on the chalkboard.  Then ask students, one at a time, to erase something that could harm the environment.
Beds, foam cups, what, war, polio shots, oil, atom bomb, pine trees, friends, sneakers, car, hairspray, vegetables, television, plastics, hamburgers, gold, food coloring, love, lawnmower, oxygen, zippers, flowers, aspirin, rockets, ice cream, water, candy bar, computers, grass, chemical fertilizers, jets, school, mosquitoes, boom boxes.
Add to this list.  Have students explain their reasoning.  — KT

MATHEMATICS

Whale Milk Math
A newborn blue whale gains 200 lbs per day (9 lbs. per hour) by drinking up to 50 gallons of milk each day. In one day, a blue whale calf would drink the amount of milk in 800 school-sized milk cartons! Have students rinse and save milk cartons each day. Count the new ones daily and add the total to the previous day’s total until you reach 800.

How Many Legs?
Post pictures of an octopus, a seastar, a crab, and a gull. Review as a class the number of legs each animal has, and discuss the ways each animal’s legs help it to survive. Next challenge students with addition problems, such as: How many legs would there be if we had added the legs of the octopus and the gull? The seastar and the crab?

Geometric Shapes in Nature
Geometric shapes can be found in twigs, rocks, leaves, insects, and feathers.  Look for cubes, cylinders, pyramids, cones, ovals, spheres, spirals, etc.  have students put specimens in like piles.  Variation:  Human-made shapes.  Triangles, squares, dcircles, rectangles, etc., can be found at school in sidewalks, buildings, clothing.

LANGUAGE ARTS

What Do You See?
Students view several pictures of beach/ocean wildlife, then choose one to study. After examining closely, each student writes a description of his/her animal. Later, teacher reads written description and class guesses which animal picture it was based on.

World Music
You and your students can listen to, discuss, learn the lyrics and sing along with international artists of world music. Johnny Clegg and Savuka, Raffi, Peter Gabriel, Midnight Oil, Sting (song composed in the video, Spaceship Earth), Julian Lennon (“Salt Water Tear”) and Paul Simon (“Boy in the Bubble”) are only a few. Kid’s Eye View of the Environment, presented by Michael Mish, is a delightful audio cassette with clever lyrics and catchy melodies that will make everyone want to sing and dance.  — TPE

Finding Adjectives
Give each child a small piece of paper with one or more adjectives that describe something in nature (e.g., smooth, slimy, triangular, expanded, cool, soft and green, round and gooey).  Have students explore a natural area to find items that meet these descriptions.  Let students take turns sharing what they found. —JOD

FINE ARTS

Be a Tree
Have students identify characteristics of trees. Visit trees in a back yard, in an orchard, in a park, or in the school year.
Have the students do tree dramatizations, using their arms as the branches and their legs as the trunk. How does the tree look during a storm? How does a fruit tree look in the spring? How does a young tree look in comparison with an old tree? What would happen to change the tree in different kinds of weather or during the different seasons?
After feeling what it might be like to be a tree, have the students paint pictures of them. — EGO

Make a Refracting Telescope
Use two small convext lenses, a toilet paper tube, cardboard, rubber cember, and paper.
1. Find the focal length of one of the lenses.
2.  Cut a lens-size hole in the cardboard
3.  Glue the lens over the hole.
4.  Trace around the toilet paper tube with a pencil over the spot in the cardboard where the lens is located.
5.  Cut on this line, and glue the cardboard-mounted lens in the end of the tube.
6.  Wrap a sheet of paper around the tube.
7.  Tape it in place.
8.  Mount the other lens in the end of the paper tube.
9.  Slide the tubes back and forth.

Natural Balance
Collect natural materials, or have students collect them.  Suspend them with string under a crossbar of two sticks.  Driftwood, acorns, and pine cones are among materials that are effectively used.  Hang these in the classroom to brighten the scenery.

GRADES
3-5

SCIENCE

Evaluating Growth
Growing plants in crowded and uncrowded situations will show the effects of overpopulation. Fill milk cartons about three-fourths full of soil. Plant several cartons with seeds — some with two or three seeds, several cartons with a small handful and several cartons with a large handful. Varying the amounts of seed in the different cartons creates different conditions under which the plants will grow. After the seeds have become seedlings, measure and record their heights on a piece of paper and draw a line graph on graph paper to represent each group of seedlings. Evaluate the plants’ growth periods in terms of the number of plants under the different conditions. —CTE

Living in the Schoolyard
Teacher begins activity by drawing an outline of the classroom on the blackboard.  Develop a key to one side of the outline to be used to represent the plants, animals and special features which exist in the classroom.  “Let’s see if we can make a map of all the living things in our classroom.  Does anyone see a plant?  Skippy, will you come up and mark the plants on our map for us?
Then provide a map of the schoolyard for groups of students (or for individual students depending on skills at map making).  Take children outside and let them map all the living things that they see.  Remind them that they have to look hard to see some of the things that are there.
After students have completed their maps, gather them together for discussion about the roles of the living things they found.

Forest Community

Discuss as a group the items a city has and make a list.  Suggestions include people, factories, subways, cemetery, apartments, treffic, plumbing, stores, garbage collectors, streets, etc.
Divide the group into smaller ones of 3 to 4 each.  Send each group out in a forest or wooded area and have them try and identify the natural item that corresponds to the ones on the list.  —ECO

SOCIAL STUDIES

Pick a Package, Any Package
Visit a supermarket and find the following products: cereal, laundry soap, milk, fruit juice, vegetables, soup, cake mixes, spices, candy, and toothpaste. In what different kinds of packages can they be bought? Are they available in the bulk food section? Why are products available in so many different packages? Which packages have the least amount of throw-away packaging? Which packages cost the least for each product? Which one does your family usually buy? Back in class, make a wall chart. Can some of the packages be reduced or avoided, reused or recycled? Circle in green all the reusable items, in yellow all the recyclable items, and in red all the disposables. -NTW

Non-Pointing the Finger
Take a walking tour of the neighborhood. List possible examples of non-point source pollution, both natural and human-caused. Back in the classroom, compile a class list to see how many sources were pin- “pointed.” Use magazine or newspaper pictures to make an informational display of possible sources of non-point water pollution.  — FSS

Water, Water Everywhere…NOT!
Point out that last year water was rationed in parts of California.  It was shut off altogether in parts of Rhode Island when a leaking gas station tank polluted it.  Our carelessness can hurt the water supply.  Also, it is important not to waste water if we want to be sure of having enough for our needs.  Have students name some ways each of us can help protect our water supply.  (Ideas include using less water, not running water needlessly, not littering near bodies of water.  Also some environmentalists suggest eating less meat to save water.  A vegetarian diet requires much less water in its production than is used in the raising of cattle, for example.) —KT

MATHEMATICS

Milk Carton Madness
In an attempt to determine how much potential space milk cartons take up in a landfill, students measure and calculate the volume of one milk carton. Students also determine the volume of their classroom. Using the milk carton volume figures, have the students determine how many cartons it would take to fill up their classroom. Then determine how many milk cartons are generated by the entire school in one day. Determine how long it would take to fill up their classroom. Extend these computations to a volume the size of the school. Follow this by discussing the importance of diversion of materials from the landfill and by exploring the feasibility of milk carton recycling at your school. — TGP

Shoot the Moon
Knowing that the moon returns to a given position every 29 1/2 days, have students figure out the dates that will have full moons for the coming calendar year.  From this they can make their own calendars and check up on themselves. —JOD

LANGUAGE ARTS

Get Your Story Straight!
Invent or find a story that conveys an environmental message you wish to have your students think about.  Divide the story into individual events that have ideas or words that allow the student to sequence them in a particular order.
As a group, or individually, have the students read the passages.  Have the students number the passages so that the story can be read in the correct order.
Read the story aloud in the correct sequential order.
Use discussion and questioning to strengthen the story’s message. —IEEIC

Wet Words
How important is water to our society? Just think how many different words we have to express it. Have students brainstorm words that mean water or a form of water (e.g., splash, drip, etc.) while the teacher lists them on a large sheet of butcher paper. Can your class reach one hundred? Save the list and use it later for creative writing activities.

FINE ARTS

Wetlands Animal Masks
Students can create paper mache masks of their favorite wetlands creatures.  Creative dramatics can be developed by students using their masks to play a role in a wetlands drama.
Students will need old newspapers, wallpaper paste or liquid starch, water, tempera or acrylic paint, round balloons, and scissors.
Choose a wetlands animal.  Tear the newspaper into narrow strips.  Blow up the balloon.  Mix the wallpaper paste.  Use one part wallpaper paste and 10 parts water or straight liquid starch.
Dip the strips of newspaper into the wallpaper and water mixture.  Lay the paper over the balloon.  Apply two layers to what will be the front of your mask.  Let it dry completely.
Repeat procedure, building up the areas that will be noses, beaks, ears, etc.  Let it dry completely.
Repeat the procedure, applying one last coat of paper over the entire mask.  Let it dry completely.
Put the mask over your face.  Feel where your eyes are.  Have a friend mark the eye gently with a crayon or marker.  Remove the mask and cut eyeholes.  Put the mask over your face and check the eyeholes; remove it and make any corrections.
Cut a mouth hole.
Paint the mask and let it dry.

Water Drop Necklaces
Give each student a sheet of paper onto which a large water drop has already been drawn on both sides. On one side of the paper, printed inside the water drop are the words, “I’M TOXIC, DON’T FLUSH ME.” On the reverse side of the paper, inside the water drop are written the words, “WATER IS PRECIOUS, AS PRECIOUS AS…” Instruct students to draw one or several toxic items that should not be flushed down the toilet (e.g., paint, oil, chemicals) inside the water drop on the “toxic” side of the paper. On the other side instruct them to draw pictures of one or more persons or items that are precious to them (e.g., grandma, grandpa, a pet, a bicycle).
Once the drawings are completed, have the students cut out the water drop, then punch a hold near the top of the drop using a paper punch and finally thread a string of yarn through the hole to create a necklace. The necklace has a positive “precious” side and a negative “toxic” side depicted by the students’ drawings. — CON

Torn Paper Art
To help the students understand the fibrous make up of paper, tear a scrap of paper and hold one of the torn edges up to the light. Along that edge will appear a slight fuzz. Here and there tiny strands will project separately, like fine hairs. These strands are cellulose fibers.
Discuss with the children all the different materials from which fibers can be harvested to make paper. Show them fibers from a small piece of cloth to illustrate the point.
Using scraps of construction paper, tear and glue different colors to represent the forest and creatures who depend on the forest for survival. Display these pictures throughout the school to heighten awareness of the need to conserve and protect natural resources. – CON

GRADES
6-8

SCIENCE

Rainforest Pyramid
Use artistic talents to create blocks symbolizing rainforest creatures.  Build a pyramid, putting the prey species such as insects at the bottom – building up until the top predators like the jaguar and harpy eagle are at the top.  Show what happens when prey species are taken away – such as if insects are killed by pesticides, or small rodents are killed as pests.  The same activity can be done for temperate forests of the Northwest as well, or any other particular ecosystem. —RC

Adopt a Part of Nature
Adopt part of a stream, creek, river, lake or ocean. Clean up the beaches or shores and spend time there as a class enjoying these special places.

Shorebird Safari
After introducing the class to common shorebirds and the field marks used to identify them, take your class to a beach. Shorebirds are visible year round, especially as the tide goes out. Students should try to identify special adaptations the birds have and predict the type of food they are seeking.

SOCIAL STUDIES

How Did They Do It?
Have students investigate the lifestyles of Native Americans on the prairie or along the coasts or in your local area.  How were their needs met by these different environments?

Nature’s Tool Box
Pass out to individuals or small groups of students an assortment of simple tools: paper clips, sewing needle, letter opener, hair brush, straight pin, comb, and so on. Have students examine the tools carefully and decide what kinds of natural objects could be used or modified to make them. After students hike through an outdoor setting and collect materials, have them use the materials to make specific tools. —EGO

Travel Log
Design a travel log to show the travelling you do for two weeks. Include the date, where you went, how you travelled, who went with you, how long it took and how many kilometres you travelled round trip. After two weeks, add up how many trips you took by car, transit, bicycle, foot, taxi or other modes. How many kilometres did you travel all together? Which transportation mode is the fastest? The cheapest? Which is you preferred transportation mode for each type of trip? Why?
Now analyze your information and make suggestions as to how you could have reduced the number of trips you made. How many times could you have used transportation other than a car? Compare your results with those of your friends. —LCA

MATHEMATICS

Calculating Growth Rates
In 1990 the U.S. population was 248.71 million, in 1980 it was 226.54 million.  If you need to determine the annual growth rate and doubline time from this information, use the following equation:

growth rate = (100÷number of years) x In (pop. 1990 ÷ pop. 1980)

To calculate natural log (In), you will need a calculator with an “In” key, which are available for under $20.  The following is the series of keystrokes required to work out this example:

KEY    DISPLAY READS
ON        0
248.71    248.71
divided by    248.71
226.54    226.54
=        1.0978635
In        0.0933660
x        0.0933660
100        100
divided by    9.336603
10        10
=        0.933660

Because of the uncertainty in the data, we will round this number up to 0.934.  You now know that population in the U.S. increased between 1980 and 1990 at an average annual growth rate of 0.934 percent per year.  Using the equation to determine doubling times (70 divided by the rate of growth), you can also figure out that the U.S. population at that continued growth rate will double in approximately 74 years.  We cannot however, assume that the rate of growth will remain constant.  The Immigration Law of 1990 for example, which increased immigration rates by 40%, will proportionately raise the U.S. population growth rate and thereby decrease the time it takes for our country to double its population. -CCN

Graph the Tide
Purchase a tide table wherever fishing supplies are sold. Enlarge and photocopy each month’s chart on a separate page. Make enough copies so that each student will have one month to chart on graph paper. Post the papers in a line along the wall to see the rise and fall of the tide for the year. Teacher may want to designate a place on the paper for the base point (0.0).

LANGUAGE ARTS

Opposites Attract
Here is a thought-provoking idea: Collect photographs, illustrations and/or paintings from magazines — some that graphically portray a healthy, balanced environment and others that depict a damaged, unhealthy Earth. Hang these on opposite walls in the classroom to stimulate discussion and inspire writing. How does each set of images make students feel? Encourage them to think about how the healthy can be changed into the damaged and how they can help to change the damaged back into the healthy. As students learn about environmental problems and the solutions, they may go to the appropriate sides of the room to record their thoughts and ideas in two separate notebooks.  For example, if a student is studying about an extinct animal, that student may record his/her concerns in a notebook located next to the unhealthy Earth artwork.   If he/she knows of possible solutions and actions that can be done to help, they may be recorded on the other side of the room next to the healthy Earth artwork. Eventually, your class will have two useful notebooks filled with concerns and solutions to many environmental problems. Prioritize these and use your computer to record the top ten items that can be posted in the room for reference and distributed to family members. – TPE

What’s the Idea?
Encourage students to be on the lookout for environmental articles in their magazine.  Once they begin coming in, select one and duplicate as many as needed.
Distribute copies to students.
Instruct the students to read the selection very carefully.  On a clean sheet of paper, or index card, they are to write the following:
• the main idea
• the problem
• a solution
• their personal opinion
• a summary (approximately eight sentences)
On the back they are to compose and write three quality questions with answers regarding the selection; one true-false, one multiple choice, and one fill-in-the-blank.
Collect papers and compose a comprehension quiz to distribute the next day, or perhaps create a game with which to exercise learned facts.  — IEEIC

Expectations
Students can write a paper that expresses their feelings about going to outdoor schooll.  By knowing their anxieties, fears, and excitement, you may be able to better understand their individual needs.  It is always fun for students to reread their own papers upon returning home.   —JOD

FINE ARTS

Touch of Color
While visiting a wooded area, pass out paper to the class and have each student, using natural materials (soil, berries, flowers, leaves, moss), draw a picture of the forest setting. Give the class an opportunity to display their work and describe their feelings about the surroundings. Encourage the students to discuss what materials were used to add color. —EGO

GRADES
9-12

SCIENCE

What Eats?
For one game, divide the group into teams, with no more than 10 persons on a team.  How write a column of numbers one to 10 in three widely separated places in the room.  Each team has a pice of chalk or marking device.
At a signal, the first person on each team dashes to the column of numbers and writes the name of a plant or an animal opposite the number “1”.  Then he dashes back and gives the marker to the second person on his team.  This person goes to the column and writes the name of something that eats what is written in number “1”.   The marker is then passed to the third person, and so on down the line.
If a player writest down an incorrect name, it can be erased only by the next player, who loses his turn to write a name.  Winners are determined by the most correct food-chain connections identified by a group.
Once a group has developed some skill at playing, try limiting the habitat to that of the forest, a brook, a marsh, a pond, the ocean, or some biome or community.

Symbiosis
Working with a partner, students research symbiotic relationships amongst intertidal and ocean organisms and choose one to report on. One example would be the anemone and the clownfish.

Human-created Habitats
Assign one water-dwelling animal to each student or team. Students then must design (on paper) an artificial habitat which would suite the living requirements of the animal. To do so, they must investigate and establish the characteristics of the animal’s natural habitat, including food, water, shelter, space, climate, etc. This assignment could be followed by creating models of artificial habitats.

SOCIAL STUDIES

Environmental Impact
Create a large mural on butcher paper of a natural area complete with wildlife, trees, mountains, rivers, etc. but no human development.  After completing the mural, brainstorm a list of things that would happen if a much needed energy source (e.g., coal, oil, uranium, water) was discovered in that area.  Draw pictures of these activities and facilities and place them in appropriate places on the mural.  Discuss the positive and negative impacts the “new development” will have on the environment and wildlife, and create a list of these effects.  Now, re-develop the energy source and see if you can come up with ways that the development can have less impact on the environment and still get the energy needed, at an affordable cost.

Move Over!
To begin this activity, tell your class they are going to try an experiment dealing with classroom arrangements.  Don’t mention the idea of overpopulation or limited resources.  These concepts will surface as the outcome of the activity.
Select an area of the classroom to be used in this overpopulation experiment.  an area approximately 10’x10’ should be marked with masking tape on the floor and two desks should be placed inside the area.  Also provide a “Resources Box” with 4 pencils, 2 pens, 6 sheets of paper and 1 pair of scissors.
Select two volunteers to work in the square.  They should take with them only the books they will need.  One half hour later, select two more students to work in the square and add their desks to the other two. (Make sure to remove all “resource” from the desks first).
Continue to add students to the area in shorter intervals of time similar to the way population grows rapidly.  When the area can no longer hold additional desks, add students and have them share desks.  Make sure the tasks the children are involved in will require the use of resources in the “Resources Box.”
When the limited resources and overcrowded conditions lead to bedlam, bring the class together for discussion.  How is this like the real world?  What “resources” are in short supply?  —LLC

Environmental Careers
Plan an Environmental Careers Day. Research various careers associated with the environment and invite people in to speak about their jobs. Try to get a variety of speakers to reflect the diversity of careers and educational requirements. Prepare an outline for the speakers to they will address the questions you are most interested in.

Both Sides Now
A forest management specialist, touring a watershed area, notes that in one part of the forest many diseased trees have fallen and are covering the ground. This is a serious fire hazard for the forest. The specialist recommends logging this area and replanting with young, healthy seedlings. A concerned citizen’s group protests the logging, saying that clearcutting the area will erode the soil, which will make our drinking water unclean.
Your group has been asked to list the pros and cons of logging that area of the watershed. Consider the environmental, economic and social arguments. Can you find a compromise to the problem? How do personal opinions affect your decision? —FSS

Litter Lifelines
Students collect litter in an outdoor setting — school parking lot, playground, camp, or business district. Then each student selects a piece of trash – soda can, chewing gum wrapper, potato chip bag —and makes a life line of the litter, from the origin of its natural materials to its present state. — TGP

MATHEMATICS

Differential Absorption
Types of soils differ in the amount of water they can hold.  Collect a standard amount of each of five or six soil types.  Place each soil sample in a sieve held above a container.  Pour a measured amount of water onto the soil and measure how much is collected after 30 seconds, one minute, 10 minutes.  The amount of water the soil can hold is total added, minus that which drained out at the bottom.
From the data obtained, determine which of the soils can hold the most or the least water.  On what properties of the soil does this depend?  Which soils would erode most easily?  Which would be best for plant growth? —ECO

Food Chain Figuring
Use the following information to create math problems. A medium-sized whale needs four hundred billion diatoms to sustain it for a few hours! The whale eats a ton of herring, about 5,000 of them. Each herring may have about 6,500 small crustaceans in its stomach, and each crustacean may contain 130,000 diatoms…

LANGUAGE ARTS

Operation: Water
Invite the participants to imagine that they have landed on Earth from another planet.  The planet they come from only has minerals and air.  They had received word that a substance had been found on Earth that could move or hold its shape.  They are here to see if the report is true and discover for themselves what this “water” is like.  They are equipped with finely tuned instruments for sound, feel, sight, smell, and taste.  They are to split into two search parties, one going to the pond area, one to the stream.  They have 15 minute to gather sounds, smells, signs of animal and plant life, observe water clarity, etc.  The groups then discuss and compare the two water sightings and make speculations about the role of water on this green planet.  Have students write an essay on their exploration of this strange planet and the miracle substance “water.”  —JOD

Forest Essay
Have students write an imaginary story using one of the following titles:  a) The Life of a Pencil;  b)An Autobiography of a Tree from Seed to Lumber.

Legends of the Sea
Many cultures have legends about the way the ocean and its life forms were created. Read some of these to the class, then encourage them to create their own legends about how somethings came to be. It would be helpful to have some pictures of marine life forms for the students to view. Some ideas: How the Eel Became Electric; Why Octopi Have Only Eight Arms; Before Whales could Swim; How the Hermit Crab Lost His Shell.

FINE ARTS

Mother Earth
Students begin by brainstorming a list of all the ways they are dependent on the Earth.  From that list should come some ideas for presenting that information to others.  They may decide to have teams of students work on representing different items on the list.  They may want to expres their relationship to the land written in story format, in poetry, verbally on tape, through photographs, drawings, paintings, or soft sculpture.  They should come up with a theme uch as Native American philosophy, or a celebration of life-giving qualities of the Earth, or getting involved with conservation, and work from there.  Ask for volunteers to write letters to local organizations requesting space to set up their display for others to view.
Encourage your students to express their feelings about our responsibility to live in harmony with the land.  Is it our responsibility?  Can the actions of one person make a difference?  What kinds of actions does living in harmony with the Earth require?  —LLC

Environmental Art
Visit a natural history museum. Or, have students look through books with photographs of paintings depicting the environment. They may analyze, discuss, compare, contrast art works and give critiques. Pupils may be inspired to write poems or stories about ideas generated from the special works and they may then create their own works of art.

Sources of activities:

CCN — Carrying Capacity Network Clearinghouse Bulletin, June 1992.
KT — Kind Teacher, Natl. Association for Humane and Environmental Education
IEEIC — Inegrating Environmental Education Into the Curriculum… Painlessly. National Educational Service, 1992.
RC — Rainforest Conservation, Rainforest Awareness Info. Network, 1992.
ECO — Eco-Acts: A Manual of Ecological Activities, Phyllis Ford, ed.
JOD — Just Open the Door, by Rich Gerston, Interstate Printers and Publishers, 1983.
LLC — Living Lightly in the City, Schlitz Audubon Center, 1984.
EGO- Education Goes Outdoors, Addison-Wesley 1986.
CON – Connections: Life Cycle Kinesthetic Learning. The Energy Office, Grand Junction, CO 1993.
CTE – Consider the Earth by Julie M. Gates, Teacher Ideas Press, 1989.
FSS – From Source to Sea, Greater Vancouver Regional District 1993.
GGC – Growing Greener Cities and Environmental Education Guide
American Forests, Washington DC 1992
LCA – Let’s Clean the Air, Greater Vancouver Regional District 1993.
NTW – No Time to Waste, Greater Vancouver Regional District 1993.
TPE – The Private Eye, Kerry Ruef, The Private Eye Project, Seattle, 1992.

Classroom without walls

Classroom without walls

Stepping Into Nature 2013June04

“Mr. D., that was the best science class I’ve ever had!”

The trials and successes of a classroom without walls

By Greg Derbyshire

T3he above feedback, made by a grade 8 student, is one of many similar comments made to me by students and parents who recognize and appreciate the opportunities provided by outdoor experiential education. That’s why I took students outdoors when I was a classroom teacher. Not for the accolades or ego stroking, but for the knowledge that I reached many students in a way that can’t be done inside the walls of a classroom. Few of us need to be informed of screen-time statistics when it comes to our modern society. A growing body of research is supporting what many of us know inherently, and the long-term impacts of the loss of exposure to the natural world are mounting. We now know that connecting with the natural world benefits many aspects of our being. Physical, social, spiritual, and mental health improve when we spend more time outdoors. Bullying decreases, ADHD symptoms are reduced, and social and cultural barriers diminish. For many of us, we know that we have an obligation as teachers to expose our students to the outdoors; it may be the only opportunity many of them get.

Herding Cats

The last class of my indoor teaching career was one of the nicest groups of grade 7 and 8s I’d had the pleasure of working with. They were energetic, creative, and enthusiastic. They weren’t, however, good listeners. During the first couple of weeks of September, I tried to help them develop better listening skills.

The usual strategies didn’t work; being late for gym class bothered them, but didn’t change their attentiveness.

With some trepidation then, I prepared them for a study of our schoolyard and the adjacent vacant land. The grade 7’s would investigate biodiversity for the Interactions in the Environment science unit and the grade 8’s would review the above, plus collect plant and water specimens for investigation with microscopes for the Cells unit.

Prior to going outdoors, we reviewed the expectations. Each small group would carry a clipboard, worksheets, scrap paper, pencils, measuring tapes or metre sticks and numerous zip-lock bags for collecting samples. Members of each group were to stay together and work together, solving problems on their own if possible.

I knew this class might be a bit challenging in an outdoor setting because of the struggles we’d had with listening skills in the classroom. But it was much worse than expected. Groups split up, metre sticks were used as swords, pencils got lost, and worksheets didn’t get filled out properly. And, that was just in the schoolyard! With thirty years as a classroom teacher under my belt, and with considerable experience at outdoor education centres, leadership centres and summer camps over the previous thirty-five years, I had no idea a group could be so frustrating. Despite the schoolyard behaviour, we moved to the adjacent vacant land and continued our study. When we finished our work and lined up at the school door to go back inside, I shared with them my dismay at their blatant disrespect for their peers, for me, and for the learning opportunity, which they had just spoiled. I told them that I had never had such a challenging group in all my years teaching outdoors, and that my experience that day was much like trying to herd cats. They knew Iwas upset, so they followed my instructions to return to class, sit down,open their reading books and remain silent.

I sat down at my desk to plan my lecture on respect and listening skills. After fifteen minutes, I asked for their attention.

Instead of my lecture though, I instinctively asked them to share what was good and what wasn’t so good about their outdoor learning experience. A few students offered the correct observations about poor listening skills and a general lack of following instructions. A couple of students suggested that the hands-on learning was a lot of fun. Then, the comment I’ll never forget: “Mr. D. – that was the best science class I’ve ever had!”

I paused. It was obvious that many other students felt the same. “Why then,” I asked, “were you so out of control out there?” It took some time, but some students shared that they seldom, if ever, went outdoors for anything but recess and gym class. They just couldn’t control themselves with the perceived freedom; it was too much like recess, despite having clipboards and worksheets in hand.

Even with this frustrating outing, the learning that followed was substantial. We spent many quality hours preparing plants for pressing, identifying species, mapping study plots with species variety, comparing schoolyard plots with vacant land plots, preparing slides for looking at samples through microscopes, identifying microscopic invertebrates, and preparing reports for presentation. Just one afternoon of outdoor learning provided plenty of extended learning opportunities in the classroom, and set up anticipation for future forays into outdoor experiential education.

In fact, the outdoors became our classroom without walls. Students began to ask if we could go outside to learn. We did. Over the course of the year, we left the classroom for language, math, history, geography, science, physical and health education, and the arts. The outdoors became a natural place to learn. And they became better learners as a result.

 

Benefits, Barriers, Basics and Beyond

As suggested above, there are dozens of benefits to outdoor experiential education. Students get more exercise, they socialize more, co-operate more and learn more.

They are exposed to new venues for learning where staff can share their expertise. Some students, who might find desk learning a bit of a struggle, shine in the outdoors; they often take leadership roles in groups – something they would not normally do inside. In my experience, students become motivated to work well together so that they don’t lose their outdoor learning opportunities.

The different venues open up different ways of learning. Most will know of Howard Gardner’s theory of multiple intelligences, (Frames of Mind: The Theory of Multiple Intelligences,1993).

There are now nine recognized intelligences: logical-mathematical, spatial, linguistic, bodily-kinaesthetic, musical, interpersonal, intrapersonal, naturalistic and existential. I am convinced that outdoor experiential education can support and enhance all nine intelligences.

Recently in education, differentiated instructionhas been touted as the way to reach more of our students. Take them outside, then! Some will thrive. Some will be challenged. All should benefit in their own ways.

There are, however, a few barriers to taking classes out regularly. A single permission form for a year of local outdoor excursions may not be allowed at some schools. On the other hand, many schools and boards are moving toward being “paperless,” so trip-specific permission forms could easily be completed electronically. Depending on administration, specific school and classroom compositions, the availability of volunteers may be a barrier. None are typically needed if you are staying on school property, and possibly if you are going “next door.” Other outdoor resources within walking distances would require volunteers. Individual schools and boards will have their specific requirements.

As is suggested by my “herding cats”experience, individual class dynamics will impact on the quantity and quality of outdoor experiences. Teachers must recognize the uniqueness of each class and the individuals within it, and plan accordingly. The reality is, some classes may not be able to get out as often as others. Regardless, the benefits of outdoor excursions will be palpable.Whether you’re a novice outdoor educator who needs support, or the experienced teacher who can provide that support, there are a few basics to keep in mind. The list below is a starting point. Adjust it as you see fit for each activity to suit your specific needs. The more experience you get at this, the easier it is.

  • Get to know your local resources, (schoolyard, woodlots, vacant land, urban studies opportunities, talented parents or other adults in the community who might be able to help you with specific aspects of outdoor learning).
  • Get to know your board and school policies and procedures for outdoor excursions; complete any required paperwork. Perhaps a generic permission form for occasional excursions close to school would suffice for those outdoor teaching opportunities that present themselves throughout the year.
  • Arrange for volunteers, if needed.
  • Know your students; what are their strengths and limitations?
  • Plan the activity for your chosen curriculum area and topic, and gather materials and supplies.
  • Carry out that plan; take those kids outside!
  • Debrief the students to find out what they liked and didn’t like, and what they understood and didn’t understand. This feedback will prove very useful for future outings.
  • Do follow-up activities to solidify learning.

 

Beyond the basics, here are some ideas for developing a network of outdoor educators within your school and district.

  • Consult with colleagues to learn the basics.
  • Share your ideas and experiences at regular meetings.
  • Create outdoor activity resource documents specific to your schoolyard and local resources, (saved on your school’s server, of course). All teachers can contribute to it.
  • Combine classes for some of your excursions. This is one way to team up experienced and inexperienced teachers, and more appropriate student groupings may be easier to arrange.
  • Be an advocate for outdoor experiential education whenever you can.

So, why bother?

From my years of experience in the outdoor education and recreation sectors, I’ve seen what a difference going outdoors can make. Beyond all the wonderful benefits stated in research, there’s something that happens to children when they spend time outdoors. Their eyes soften. They begin to see the world in a different way. They’re more centred and at peace. They discover a part of themselves they didn’t previously know. What more could you want for your students?The bottom line is, if you don’t make the small effort to take your kids outside, who will?


Greg Derbyshire is a recently retired classroom teacher with the Grand Erie District School Board in Ontario, Canada. His many and varied outdoor interests and pursuits continue to occupy much of his time. More recently, his interest in promoting the benefits of outdoor experiential education has inspired the creation of a new venture, It All Comes Naturally.

This article first appeared in Stepping Into Nature, a publication of The Back to Nature Network, a multisectoral coalition oforganizations and agencies working to connect children and families with nature. The Network was established with the support of the Ontario Trillium Foundation through a collaborative partnership between Royal Botanical Gardens, Parks and Recreation Ontario and Ontario Nature.

NGSS and Environmental Education

NGSS and Environmental Education

Use the Real World to Integrate Your Curriculum

In today’s test-driven schools, there’s little room for including the world outside the classroom in the curriculum, even though school is supposed to be based on the real world. And prepare us for it.

by Jim Martin
CLEARING Associate Editor

HawkThis year I watched good classroom programs which involved and invested students in the learning they were doing come to a halt for several weeks so they could prepare for the standards tests. This, during what is the best teaching time of the school year: January through March, when there are very few breaks in the schedule, and teachers can concentrate on the delivery of curricula. Somehow, we have to wake up, get back to our senses, and use this time for learning.

That said, students do need to go out into the world to learn. Let’s look at two possibilities, the first in a stream, the other in a school yard. We’ll do the stream first, since it is the kind of place we ought to be going to. Then the school yard, since it is often the only alternative we have.

There are many places where students can find a streambank to explore. Or a wooded area; an open meadow; some place where they can see and count the organisms who live there. Then learn about them. These are wonderful places for students to engage new content via Active Learning. There is one, a small stream, near where I live. Here’s a list of some of those who live there: Salmon fry (very small, recently hatched, eat copepods); Copepods (eat algae and organic debris); Amphipods (eat organic debris, algae); Mayflies (eat algae, organic debris); Caddisflies (eat organic debris, algae, mayflies); Organic debris (this is dead and decomposing organisms on the streambed); and Algae (plants found on the streambed and submerged rocks). This list of organisms and information about them is abbreviated, mostly out of necessity; this is a blog, not a book!

Why Employ Active Learning?

Active learning is the best way for humans to learn. It entails having a learner-generated reason to find out something, and access to the resources which will help them find out. Finding plants and animals in a riparian area always stimulates students, and easily leads to conceptual learnings. Providing their teacher is comfortable with this way to learn. This is because noticing something in the world outside your body that catches your interest can, if you’re allowed to follow up on noticing, engage your prefrontal cortex and the machinery it employs in critical thinking. That builds brains. We need to do it.

Let’s say you find a stream near your school which has been restored, and supports a small salmon population. Your class can make a round trip to it in 20 minutes, which leaves time to make observations each time they visit. When they make a visit, they’ll group to study macroinvertebrates on the bottom of the stream, algae on the stream bottom and rocks, and animals living in the water column who will fit into a small net. Next, they’ll organize themselves to learn to identify the organisms they’ve found, and find out what the animals eat. This is an opening to several NGSS standards: Let’s look at four, one each from K-3, 4-5, 6-8, and 9-12. (I haven’t started this yet, but it should be doable. It’s all LS.) So, while they’re gathering data to build a food web, they can also be embarking on an integrated curriculum about diversity, thermal tolerance, diet, a John Steinbeck novel; whatever is coming up.

For K-3, look at K-LS1-1: From Molecules to Organisms: Structures and Processes, in which students use observations to describe patterns of what plants and animals (including humans) need to survive. In this case, building the food web helps students answer the question of what do living things need to survive. That might also lead to learning how some organisms not having enough to eat might affect their food web.

For 4-5, try 5-LS2-1: Ecosystems: Interactions, Energy, and Dynamics, in which students develop a model to describe the movement of matter among plants, animals, decomposers, and the environment. In this case, when one species becomes scarce in its ecosystem, then is lost, this affects the movement of matter in its food web. In doing this, it also affects species diversity. This might lead to learning more about diversity, how we determine it, and what it provides for the species in a food web.

For 6-8, try MS-LS2-4: Ecosystems: Interactions, Energy, and Dynamics, in which students construct an argument supported by empirical evidence that changes to physical or biological components of an ecosystem affect populations. This might lead to learning more about how their food web reflects ecosystems, and some of the biotic interactions which affect them. Middle school students might also use their food webs to approach another NGSS standard, MS-LS2-5: Ecosystems: Interactions, Energy, and Dynamics, in which students evaluate competing design solutions for maintaining biodiversity and ecosystem services. Again, they learn how to assess biodiversity, and apply those learnings to their food web.

For 9-12, try HS-LS2-6: Ecosystems: Interactions, Energy, and Dynamics, in which students evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem. For instance, they can use their food web to learn about thermal tolerance, and how it might cause the loss of one or more species in their food web. Then they might even search the literature for current evidence that, as species move from one ecosystem to another due to the stressors involved in global warming, they are replaced by other species, more tolerant of the changed thermal regime.


Can you engage active learning?

All of these can be enhanced with lab and field activities. This is in addition to the learning each group of students engages. Because they’re learning about particulars they have engaged in a stream, these learnings will become part of a readily accessible conceptual schematum, rather than a smorgasbord of disconnected facts.

Pick one of these which doesn’t seem overpowering, look it up on the NGSS web site, and try it out. Read what the NGSS says about it, then think of what you understand of food webs, and see how you can put the two together. When you’ve done that, then see what area of science you will soon be teaching, and see how you can use the NGSS description plus what you know of your food web, to integrate all into a workable unit to teach.

While the NGSS documents don’t often refer to food webs, there are some references to them at the elementary, middle, and high school levels. You can just do a search for ‘food web’ to find them. I’ve used the labels and titles, and the descriptions from the NGSS site in this writing. But I’m uncomfortable with the bureaucratic way they describe a very vivacious, dynamic, interesting system. A food web is one place where much science can be effectively addressed. Then, instead of learning facts about systems, students develop conceptual schemata which tie many areas of science together in meaningful concepts, ideas of how the world works.

We’ll use the organisms I found at the stream near my home for the next step; and that is to build a food web for this riparian area. As in all studies like this, the data collected will apply to just my reach, not the whole stream. To be more confident that my sample represents the stream, I’d have to sample more reaches. This collected information can then be used to construct food webs for that extended reach of the stream. Here’s one for the stream near where I live. (I had to look in side channels and slow waters near the stream’s edge to find the fry. Then, lacking time to complete the sampling, I looked up their diets on the web. I used this information to construct the food web in Figure 1.)

Martin51516fig1

Figure 1. A Riparian Food Web. Elements of the food web are organized by trophic level.

 

While I’ve named each organism just once, I’ve grouped larvae, both young and mature, in one place, even though they might show up within more than one trophic level if I have considered all of the stages in their lives. And for some, there are more than one species gathered under a name. Considering all species and their life stages would make a more complex, but more informative food web if done with more attention to these details. You can take this as far as your students can comprehend or stand. Complexity increases comprehension up to a point. Beyond that, learners are on overload, and their work isn’t effective. This information/concept overload point is different for each student. You can overcome these differences in capacity by parceling out the work according to each student’s capacity and instructional level. And interest!

You’ll find that active learning is evident in the negotiations within groups as they sort out the pieces of their food webs. As they learn more details about the organisms, their conceptual understandings grow exponentially. And their food webs become more complex, and more meaningful.

Now, we’ll go to a school yard to build a food web. It may not be a riparian area, but it is an area we can study nonetheless. (When I taught inmate students in the college program at the Oregon State Penitentiary, they were able to discover and report data on food webs found in the prison’s exercise yard, an ecosystem where there were no trees, shrubs, or streams. We, too, can do this, without going to prison.) Natural areas are the best to study, but as a workable alternative, you can do an effective study in your own school yard. For lots of us, this is a more workable alternative than field trips to a stream or forest. Take a look. What can you find? Jot down their names, or make names up. (As you learn their actual names, update your food web. This tactic works well with students.) Make an initial food web from your observations, then amplify this with information students research. (Food webs are easier to assess in fall and spring, when the organisms are there in greatest number. However, as compost piles remain warm in their interior, you can probably assess them any time. Be sure to cover them back up!)

Here is one I made up as an example. It’s based on what you might find in a compost pile in a corner of the school yard. If you’ve ever rummaged a compost pile, you’ll know that this is a much simpler food web than you’d find in most compost.

Martin51516fig2


Figure 2. A Schoolyard Food Web.

 

Food webs, by themselves, provide a visible platform for thinking about organisms and their ecosystems in a dynamic, conceptual way. Both species diversity and thermal tolerance can be effectively introduced via a food web. Thermal tolerance can affect diversity as species move from an ecosystem where temperatures have gone from within their thermal tolerance range to one which offers a better thermal regime. Diversity can attenuate the effects of thermal tolerance limits by reducing the effects of losing a food web species. The more diverse the population, the better the chance that other species will utilize the food sources that the departing species exploited. And might be exploited by the same consumer which consumed the species which departed. Like the visible, dynamic structure of a drawn food web, these two biological phenomena effectors of ecosystem stability live in a dynamic relationship with one another.

So, what will they do with their food webs? In the next two blogs, let’s look at diversity first, then thermal tolerance. Both will provide valuable insights into the effects of global warming on living things; which is something our students need to become experts in.

jimphoto3This is a regular feature by CLEARING “master teacher” Jim Martin that explores how environmental educators can help classroom teachers get away from the pressure to teach to the standardized tests, and how teachers can gain the confidence to go into the world outside of their classrooms for a substantial piece of their curricula. See the other installments here, or search Categories for “Jim Martin.”