Common Core Mathematics is the most comprehensive Common Core State Standards-based mathematics curriculum available today.The modules are sequenced and paced to support the teaching of mathematics as an unfolding story that follows the logic of mathematics itself.They embody the instructional "shifts" and the standards for mathematical practice that are fundamental to the CCSS.Each module contains a sequence of lessons that combine conceptual understanding, fluency, and application to meet the demands of each topic in the module.Formative assessments are included to support data-driven instruction.The modules are written by teams of master teachers and mathematicians.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.Common Core Learning Standards Addressed in Grade K, Module 1: K.CC.3, K.CC.4, K.CC.5, K.OA.3, K.MD.3Sequence of Grade K ModulesModule 1: Count Numbers to 10Module 2: Identify and Describe ShapesModule 3: Comparison with Length, Weight, and Numbers to 10Module 4: Number Pairs, Addition, and Subtraction of Numbers to 10Module 5: Numbers 10–20, Counting to 100 by 1 and 10Module 6: Analyze, Compare, Create, and Compose Shapes