PBS
Pbs: Count on It!: Episode 203 Blossom and Snappy Go to the Farm, Part I
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.
University of Cambridge
University of Cambridge: Nrich: Pumpkin Pie Problem
On this one page website sharpen your logic, graphing and pattern recognition skills while working on this challenge. The solution is available to double check your solution.