The big ideas in kindergarten include: representing and comparing whole numbers, initially with sets of objects; understanding and applying addition and subtraction; and describing shapes and space. More time in kindergarten is devoted to numbers than to other topics.
The mathematical work for kindergarten is partitioned into 8 units:
Math in Our World
Numbers 1–10
Flat Shapes All Around Us
Understanding Addition and Subtraction
Composing and Decomposing Numbers to 10
Numbers 0–20
Solid Shapes All Around Us
Putting it All Together