| $ Store Activity Name: | Laser Shape Expansion |
| Concepts / Skills addressed: | measurement, ratio and proportion |
| Approximate Grade Range: | 6th - 10th ? |
| Materials: | Laser pointer with various shape
projector heads (These are screw-on tops that transform the point of
light normally projected by the laser pointer into shapes) |
| The General Idea: | Using laser pointers with
interchangeable shape-making heads, students experiment with the
relationship between the size of the image and the distance between the
laser and the image. Caution! Never let students get into a situation where they might point the laser into the eyes of anyone else as this can cause injury. |
| Extensions: |
If the laser image could travel
all the way to the moon, would the moon be a big enough screen to hold
the entire image? How far away is the moon? (http://www.nineplanets.org/luna.html) |
| Links: | http://www.buckwholesale.com/
click on "Toys" |
| Author: |
Paul Fadoul |