Blossom and Snappy decide to surprise Robbie by making her a pumpkin pie using math in some creative ways. They visit a pumpkin farm, dairy farm, and a dairy plant, finding out all the ways math is used in each of these places.

Blossom and Snappy go back to the pumpkin farm to investigate pumpkins -- using math -- to make into pies for Robbie. Then they go to a farmer's market to explore how vegetables are sold by weight. They also visit a packaging company to...