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Main Curriculum Tie:
Background For Teachers:
A Venn diagram is a math diagram that is used to show differences and commonalties between objects. Two circles are drawn so that they overlap. The place where they overlap is called the intersection; it must contain things that are common between both circles. For example, if one circle were labeled 'Sea Creatures' and the other 'Mammals', in the first circle you could list things like salmon, coral, perch etc. In the second circle you could list things like humans, gorillas, and mice. In the intersection you could list whales, because a whale is a sea creature that is also a mammal. Writing whale in either of the circles would not be correct because it belongs to both circles and must be put in the intersection.
Intended Learning Outcomes:
1. Have the students respond to the following statement in their science journals or on a sheet of paper:
2. Divide students in groups of three or four for the this activity. Give them the following list to be entered into a Venn diagram, where the circles are labeled ABIOTIC and BIOTIC. Students do not need to enter any list items into the intersection at this point.
4. As a class, generate a list of things that could go into the intersection of these two circles. (Examples: matter, energy, atoms.)
5. Reiterate that abiotic is something that has never lived and biotic is something that is living or was once living. On a whiteboard or overhead, list the six characteristics that living things have in common: growth, reproduction, respiration, complex chemical reactions, cells, and movement. Ask the students to write these characteristics at the bottom of their paper for later reference.
6. Have them hand in their diagrams. Check for understanding of the day's concepts.
1. The students are going to look at sectioned areas around the school for biotic and abiotic factors. Prior to the class period, go around the outside of your school with twine and wooden stakes or rulers, sectioning off several areas. Section off as many areas as there will be groups of students. In these sections, try to include a variety of objects such as plants, bug life, a fence, cement, rocks, dirt etc. The sections do not have to have the same things in them.
2. Take time in class to correct any misconceptions the class may have about biotic and abiotic factors. Explain to the students that there may be things that the items in the two circles have in common (for instance color) but it had to be something in common to abiotic and biotic before it could be listed in the intersection.
3. Give the students a Venn diagram of two large intersecting circles. They are to label the circles Biotic and Abiotic. Label the intersection Things In Common. Divide the students into groups of 4 or 5 (or keep the same groups from Day One). Explain that they will have a sectioned area with abiotic and biotic factors in it. Their job is to: first, list all the abiotic factors, and second: enter them in their Venn diagrams. Have the students bring their diagrams outside. Allow ample time for the students to explore their sections and complete the assignment.
The students are to list abiotic and biotic factors in the system that have something in common and then list this commonality in the intersection.
Some connecting ideas for the intersection could include color, location, or function. They could connect all the brown things, all the things that have soft surfaces, the things that provide shelter, the things that are in the soil, and things that are moved by the wind.
They should make one large diagram where the circles are labeled abiotic, biotic, and the intersection is labeled things in common. This circle should have all of the factors listed and the items that connect them (i.e. matter, energy). They should also make several smaller diagrams that are labeled abiotic factors in system, biotic factors in system, and the intersection is things in common. Each of these smaller diagrams is filled out connecting these factors together (i.e. color, function). Use the assessment rubric to assess the diagrams.
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