Curated OER
Fair Shares and Geometric Spirals
Young scholars tackle the problem of how to divide a triangular piece of land fairly among four people. They decide whether their method of fair division always works or if it only works in special cases.
Curated OER
A Trip to the Toy Store
First graders recognize and identify the value of a penny, nickel and dime. They spend play money in a simulated toy store and match their coins to the purchase price of a toy of their choice.