Math Curriculum
Level A
Unit: Number and Operations and Algebraic Thinking
Use the list below to access the key lessons for this unit from Illustrative Mathematics® (IM). Within each key lesson, you will find related lessons that support the key lesson’s topic. Some key lessons below are labeled as “optional.” Instructors with a faster-paced class that only needs to review major concepts might skip these lessons, while instructors whose students need more thorough coverage and review of the content or that have not completed a related unit, might use these optional lessons.
Click on the hyperlinked lesson description to learn more about each lesson. The numbers show the grade, unit, and lesson number of the lesson.
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- 1.1.5 (Optional) – Addition and subtraction
- 1.1.13 (Optional) – Questions about data
- 1.3.5 – Find the difference (within 10)
- 1.3.8 (Optional) – Tens value
- 1.3.10 – Addition and subtraction with a ten value
- 1.3.12 – Subtraction from a teen number
- 1.3.16 – Addition of three numbers
- 1.3.19 – Addition within 20
- 1.3.24 – Relating counting to addition and subtraction
- 1.4.4 – Addition and subtraction of multiples of 10
- 1.4.9 – Representing two-digit numbers
- 1.4.11 – Adding tens to two-digit numbers
- 1.4.16 – Comparisons of numbers with symbols
- 1.4.21 – Comparing two-digit numbers
- 1.5.3 – Addition of two-digit numbers
- 1.5.6 – Addition using equations
- 1.5.10 – Addition of two-digit numbers