This past spring, Dawne Coker found herself dressing up like her grandmother and baking cookies on camera, all for the sake of math. Coker, a K-5 instructional coach in Cumberland County schools in ...

Create your own centimeter ruler. Then, estimate and measure with lengths with it. Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through ...

A commuter is in the habit of arriving at his suburban station each evening exactly at 5 P.M. His wife always meets him there with the car and drives him home. One day he takes an earlier train and ...