Curated OER
Gazillions!
Second graders determine the total value of a collection of coins. They convert money and make money exchanges. Students create and solve money-story problems. They demonstrate the ability to summarize conversations and discussions.
Curated OER
Modular Arithmetic on the Planet of the Eights
Students explore modular arithmetic involving base eight. They participate in an activity where society functions around the numbers one through eight. Students explain how life will operate with only these numbers.