Warm up for π day with this updated activity!

If that slice from Sbarro is from an 18-inch pizza cut into eight pieces, which deal is better when comparing area of pizza and cost? How does the area of a square pizza compare to the area of a circular pizza?

# Tag: 6.G.1

## Do I have enough wrapping paper?

## The size of chocolates

In time for Halloween, students assume that all of our pieces of chocolate are about the same thickness and proceed to approximate their volumes by comparing only their surface areas. Encourage them to create overlapping grids and count the fully and partially-covered cells or use the mean radius method.