Real-World Activity: Shapes in the Sand
PLO: Students will be able to understand what 3 dimensional figure occurs when you translate or rotate a 2 dimensional figure (i.e. square, triangle)

Today we will be playing in the sand to help us understand what 3D shape can be made by translating and rotating a 2D shape through space (in this case sand). If you need help at any time click on the links below to go to a review website!
Translations
Rotations

Materials Needed:
1. shape nets
2. clear tape
3. sand
4. 2 dimensional shapes
5. Bucket (for the sand)

Directions: Part 1
1. Simply cut out the shape along the bold line.
2. Fold along the dotted lines.
3. Next, bring the pieces together.
4. Finally, tape the tabs or sides together.
5. You just turned a 2D figure into a 3D shape!

Directions: Part 2
Now lets get our hands dirty learning about 3D shapes. We are going to use sand to carve out the space that a 2D shape leaves in the sand. This "footprint" will show you what 3D shape is made when you translate it or rotate it through space (or sand).
1. Moisten the sand just a little bit so that it is not loose or "crumbly".
2. Translation: put your 2D shape into the sand so that its bottem is even with the top of the sand. Now drag it through the sand.
3. This will clear out a section of sand and show you what 3D shape is made using a translation of a 2D shape!
4. Rotation: Again put your 2D shape into the sand so that its bottem is even with the top of the sand. Now twist it in a circle. Be careful not to move it side to side, only spin it in a circle. Remember, a rotation spins around a fixed point!
5. This space will show you what 3D shape is made by rotating your 2D shape!

 To the main Class Page To the beginning of the Lesson

Next