The Arithmentic activities help in introducing the child to associalte the quantity with numbers.
The quantities are introduced by a series of number rods, which the child can count. Then he matches the sets of number cards with the rods. Using a wide range of beads and symbol cards, the child becomes familiar with the numbers as a decimal system, including concrete experiences with the operations of addition, subtraction, multiplication and division. These exercises not only teach the child to calculate, but they provide a deep understanding how numbers function and the relation between the quantity and symbol.