With Common Core Mathematics, kindergartners learn about (1) representing, relating, and operating on whole numbers, initially with sets of objects; and (2) describing shapes and space. More learning time in Kindergarten should be devoted to number than to other topics.
This set includes all of the Grade K modules:
Module 1: Numbers to 10
Module 2: Two-Dimensional and Three-Dimensional Shapes
Module 3: Comparison with Length, Weight, and Numbers to 10
Module 4: Number Pairs, Addition and Subtraction to 10
Module 5: Numbers 1020 and Counting to 100
Module 6: Analyzing, Comparing, and Composing Shapes