In class we did an activity called Pyramids and Cones. It was a hands on activity which was fun. The purpose was to develope and understand the realtionship between the colume of a pyramid and how that is related to the volume of a prism. Aswell as the relationship between a cone and it's related cylinder. We constructed a cone, open box, a square pyramid, and a circular prism. We filled the pyramid with rice and poured it into the open box. It took three to fill it up.
We did the same for the cone and circular prism. And again it took three to fill it up. Based on that we can calculate that the volume of a pyramid is 1/3rd(b)(h)(l) and the volume of a cone is 1/3rd(Pi squared)(h).
Here is a video I found that demonstrates this.
