A new way of thinking about the mathematics children in elementary grades need to know and the kinds of classroom teaching that support this

Mathematics in which young children identify important patterns, relationships and structure in mathematics

A way to extend the arithmetic typically taught in elementary grades so that young children see and can reason with its underlying structure and properties

A way to develop children’s ability to identify, describe and analyze how quantities vary in relation to each other

A context for developing children’s critical thinking skills of exploration, inquiry and argumentation

Part of a K-12 approach to algebra that will help solve “America’s Algebra Problem” and, thus, give all students acess to important mathematical ideas