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Pre-Kindergarten mathematics is about
- Developing an understanding of whole numbers using concrete materials, including concepts of correspondence, counting, cardinality, and comparison
- Describing shapes in their environment. More learning time in Pre-Kindergarten should be devoted to developing the concept of number than to other topics.

About Downloadable Resources

A Story of Units: Curriculum Map and Overview for Grades P-5: provides teachers with a clear picture of the modules at each grade level from Pre-Kindergarten to Grade 5.

How to Implement A Story of Units: provides additional information on how teachers can implement this currciulum in their classrooms. It introduces teachers to A Story of Units and it delineates the Common Core approach to mathematics, assessment, differentiating instruction, and mathematical models. The lesson structure utilized in A Story of Units which encompasses all three aspects of rigor is also detailed.

CCLS Checklist for A Story of Units: includes grade-level charts providing an at-a-glance view of when each standard is addressed. Note that, for grades K–5, standards included in clusters designated as Major Emphases by the New York State Education Department are followed by an asterisk (*).

Scaffolding Instruction for ELLs: Resource Guide for Mathematics: provide guidance to educators on how to take the curriculum materials on EngageNY and provide additional scaffolds for ELL students according to their level of Engli

Lesson 22 - Introduce 9, and relate 9 to 8 and 1 more.