Students explore counting by sharing snacks at a class party. In this number sense lesson, students discuss sharing items equally by counting out equal numbers of an item they intend to give each student in the class. Students...

First graders examine the use of number lines in problem solving situations in this series of lessons. They participate in activities in which they move forward and backward on number line on the playground before doing paper and pencil...

Pupils play a game with coins and then use reasoning skills to develop a strategy for winning the game.