The child is naturally attracted to the science of numbers. Mathematics, like language, is a product of the human intellect. Sensorial activities and sensorial exploration help the child look at the qualitative aspects of his world. He begins to use clear, precise ideas for expression. He now needs to look at the world around him quantitatively. The mathematical mind tends to estimate, needs to quantify, to see identity, similarity, difference, and patterns, to make order and sequence, and to control error.

Materials are provided to help the child count, to show numeration, place value, addition, subtraction, division and multiplication. The child moves from concrete experience towards the abstract.