Our newest PreK – Early Primary Math Resource. The book has 36 pages of games, activities, teaching strategies and math journal ideas. They use our newest manipulative Foldable Rulers with a curriculum focus at the pre-kindergarten and early primary grade levels. Concepts included in the Foldable Rulersbook are: Counting, Number Sequence, Comparing Numbers, Early Addition/Subtraction. Many ways to differentiate the games and activities to address the specific needs of all the students in your class.