A basic set-up leads to a surprisingly complex analysis in this variation on the question of surrounding a central circle with a ring of touching circles. Useful for putting trigonometric functions in a physical context, as well as...

Add a visual aid to your solar system lessons. Enthusiastic astronomers create a model depicting the nine planets and their distance from the sun. 

Don't just look at pictures of the Milky Way galaxy, build it with this hands-on activity in which scientists recreate the galaxy we live in.

Students participate in a variety of activities that involve bubbles. In this bubbles lesson plan, students make bubbles out of a soap solution, make bubble domes, make bubbles with their hands, and more.

Bring the magic of fireflies to your classroom! Using a toilet paper tube, wiggly eyes, and yellow (or glow-in-the-dark) paint, you can make your own firefly.

Third graders are exposed to finding the area of polygons by decomposing figures and recomposing them into rectangles. This strategy allows children to expand on their prior knowledge of constructing shapes by rearranging parts into...