Module 1: Sums and Differences to 10

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Grade 1

Module 1: Sums and Differences to 10

Students learn addition and subtraction of numbers to 10.

39 Instructional Days (39 Hours)


In this first module of Grade 1, students make significant progress towards fluency with addition and subtraction of numbers to 10 as they are presented with opportunities intended to advance them from counting all to counting on which leads many students then to decomposing and composing addends and total amounts.

The Following Topics Are Included within this Module:

  • Topic A:  Embedded Numbers and Decompositions
  • Topic B: Counting On from Embedded Numbers
  • Topic C: Addition Word Problems
  • Topic D: Strategies for Counting On
  • Topic E: The Commutative Property of Addition and the Equal Sign
  • Topic F: Development of Addition Fluency Within 10
  • Topic G:  Subtraction as an Unknown Addend Problem
  • Topic H:  Subtraction Word Problems
  • Topic I:  Decomposition Strategies for Subtraction
  • Topic J: Development of Subtraction Fluency Within 10

Lessons are organized under each of the topic areas.

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