Tue, 04/05/2011 - 19:57 — jneujahr

## Overview

Students try to get things to move, first without a ramp, then with a piece of cardboard that can be used as a ramp

## Materials

## Procedure

## Assessment

- Variety of small objects that cannot roll: books, wooden or plastic blocks, small boxes, bags, pieces of paper or cardboard, etc.
- Cardboard sheets (for making ramps)

1. __How can you get it to move? (Part #1)__ Give students a variety of objects. Ask the students to try different ways of moving them. *Note: some teachers prefer to let students experiment with the cardboard alone and don't introduce other materials (as in the video above)*.

2. __Class Meeting__: Gather the class to discuss the ways they came up with. They have probably thought of pushing and pulling, possibly blowing, pushing with a stick, etc. Chart with the students how they were able to get the objects to move. (Movement can be sorted into two categories, pushing and pulling.

3. __How can you get it to move? (Part #2)__ Provide the large sheets of cardboard, but do not suggest how they might be used (as ramps) – some students will probably come up with this idea on their own. Students may also use the cardboard in a see saw motion (essentially creating two ramps).

4. __Class meeting__: Gather the class to discuss the ways they came up with. If anyone has thought of using the cardboard sheet as a ramp, ask students:

· *How is this different from moving it by pushing or pulling directly?*

If nobody has come up with this idea, ask:

· *How can you get it to move “by itself” – while you are not touching it? *

5. __Science Notebook__:

Draw and write about what you did to make something move. List the materials you used.

6. __Outcomes__

· Students explore methods of initiating motion of an object, and recognize that something “extra” is needed to make it go.

· The “extra” needed to make something move could come from a person, in the form of a push or pull. It could also be made to move by putting it in a place where it “wants” to move, such as at the top of a ramp or slide.