Section

Teacher-facing learning goals

A: Add and Subtract

Lesson 1

Compare and contrast (orally) strategies for finding an unknown difference that involve addition and subtraction.
Explain (orally) strategies for solving problems within 100 that do not involve composing or decomposing a ten.

Lesson 2

Explain (orally) representations and strategies used to find an unknown addend, including those based on place value.

Lesson 3

Solve story problems and compare and contrast (orally) strategies, including those based on place value.

Lesson 4 - Optional

B: Decompose to Subtract

Lesson 5

Explain (orally) an approach for subtracting a one-digit number from a two-digit number.
Interpret (orally and using other representations) subtraction strategies that involve decomposing a ten.

Lesson 6

Compare and contrast (orally) strategies and recording methods for subtracting a one-digit number from a two-digit number.
Describe (orally) how a base-ten diagram and equations represent the same subtraction strategy.

Lesson 7

Explain (orally) strategies for subtracting a two-digit number from a two-digit number, including those that use base-ten representations.

Lesson 8

Compare and contrast (orally and in writing) methods that represent decomposing a ten to subtract 2 two-digit numbers.
Explain (orally) a strategy for subtracting 2 two-digit numbers.

Lesson 9

Match (orally) addition and subtraction expressions and base-ten diagrams that represent the same value.
Present (using words and other representations) strategies for adding and subtracting within 100.

Lesson 10 - Optional

C: Represent and Solve Story Problems

Lesson 11

Compare and contrast (orally) representations used to make sense of and solve Compare story problems.
Represent and solve Compare story problems within 50 that require composing or decomposing a ten.

Lesson 12

Match (orally and in writing) Compare or Put Together/Take Apart problems and tape diagrams that represent the same relationships.
Represent and solve story problems within 100.

Lesson 13

Match (orally) story problems and equations that represent the same quantities and relationships.
Represent and solve Add To and Put Together story problems.

Lesson 14

Lesson 15 - Optional

Comprehend (in written and spoken language) that an "estimate" for a story problem refers to an answer that makes sense for the actions and quantities in the story, but is not found by calculating the exact value.
Determine (orally and in writing) whether an estimate for the answer to a story problem is reasonable.

Lesson 16 - Optional

Lesson 17 - Optional

Explain (orally) strategies for solving problems that involve addition and subtraction.

2.2 Plan