Mathematically Minded

Subitizing is the ability to tell how many objects in a set without having to count. When you first start using subitizing cards children will want to count each object individually, but the goal is to encourage them to see the entire amount without counting. The larger sets are specifically designed to help kids see the smaller sets within and combine them to create the larger set. Even in the smaller sets some configurations are easier for children to subitize than others. For instance, my

Place Value Cards allow children to see the value of each digit within a number. The small numbers in the upper left-hand corners of the cards shows the expanded notation to remind children that the “3” is really worth a “30.” The back of each card shows the Rekenrek's (aka MathRack) visual representation of each number, to help children build spatial relationships for numbers. A set contains one card each of the numbers 1-9, the decade numbers (10, 20, 30…), and a 100 card. This allows chil