Uncle Norm’s neighbor Mrs. Pearplum’s prized bunnies have escaped! The Rads need to find a way to help her build a better bunny corral… but what shape should it be so they have the most space using just the amount of fencing she already has? TheRads visit a local hobby farm to learn how perimeter and area work together to create the best bunny corral, this side of the workshop!

The Gist: Perimeter and area are important real-world concepts in their own right, and their relationship certainly is no less important. This relationship can be intuitively challenging. For example, it is not uncommon for students and even adults to believe—at least at first thought—that a fixed perimeter, such as a given amount of concrete curbing, yields the same area no matter how you shape it into a closed figure. In this episode, the focus is on the relationship between perimeter (a one dimensional measure of length) and area (a two-dimensional measure of space). The purpose of the episode is to illustrate that 2D shapes having the same area can have different perimeters by using the real world context of construction.