Noyce Foundation
Fractured Numbers
Don't use use a fraction of the resource — use it all! Scholars attempt a set of five problem-of-the-month challenges on fractions. Levels A and B focus on creating fractions and equivalent fractions, while Levels C, D, and E touch on...
Curated OER
Clock Arithmetic and Cryptography
Students perform basic operations in modular (clock) arithmetic. Students encode and decode messages using shift and affine ciphers. Students apply their multiplication, division, addition, and subtraction skills.
Curated OER
Picture the Problem
Students create an illustration of how to solve math problems. They use appropriate resources for solving the problems. Students have to demonstrate how drawing diagrams and using pictures can help them by using KidPix. On Slide One,...
Curated OER
Estimation
Students estimate quantity, length, and area. Students practice making comparison estimations of different items and estimate whether or not the amount is greater or less than a certain amount. Students practice making estimations.
Curated OER
Mathematical Problem Solving
Second graders solve story problems. In this story problem lesson, 2nd graders solve the problems and explain how they came up with their answers. They create their own story problems to be solved.