This article describes how mathematics instruction is addressed in an early childhood classroom and how it reflects state and national mathematics standards. In drafting their own standards, many states are also recognizing the need for early childhood standards. With increased attention being focused on the youngest children in our schools, changes in mathematics instruction that have occurred over the past decade are most evident in early childhood education. Mathematics is hidden in many ways in the prekindergarten classroom in which author teach. The center houses materials for cutting, gluing, letter writing, stencil work, and so on, including several kinds and shapes of paper--construction paper, perforated computer paper, envelopes, and rolls of adding-machine tape