SALTA 2nd grade

Flexible Pacing: 45 Days (Nov. 1 – Jan. 21)

DWSBA #2 Window: Jan. 13 – Jan. 28

enVision Topics 5-8: 31 Lessons

2 nd Grade NUMBER AND OPERATIONS IN BASE TEN (NBT) Topic 5 – Subtract Within 100 Using Strategies

Reporting Standards: • Solve one and two-step word problems within 100 using addition and subtraction • Fluently subtract two-digit numbers TOPIC 5

Coherence

pp. 185F

Look back: Grade 1- •

Topics 5: •

Look ahead: Later in Grade 2- •

Decompose Tens and Ones

Understand Place Value Subtract Tens and Ones

Achieve Fluency

Mental Math

•

Add and Subtract Within 100 to Solve Problems

•

•

Earlier in Grade 2 – •

Addition and Subtraction Fact Fluency

Subtract Larger Numbers

•

Grade 3- •

Add Within 100

•

Add and Subtract Within 1,000

Rigor

p. 185G

Conceptual Understanding: • Tens and Ones •

Procedural Skill and Fluency: •

Applications: •

Subtract Within 100 Using Strategies

One-Step and Two-Step Problems

Use Tools to Show the Inverse Relationship Between Addition and Subtraction

Focus

Strand: Mathematical Practice Standard #3

2.MP.3

Construct viable arguments and critique the reasoning of others. (Topic 5) Use state assumptions, definitions, and previously established results to construct arguments. Explain and justify the mathematical reasoning underlying a strategy, solution, or conjecture by using concrete referents such as objects, drawings, diagrams, and actions. Listen to or read the arguments of others, decide whether they make sense, ask useful questions to clarify or improve the arguments, and build on those arguments. Second grade students use pictures, words, or equations to explain their strategy for finding a sum or difference. Listen and look for students that exhibit the following behaviors: • ask questions to understand other people’s thinking • identify mistakes in other people’s thinking • provide suggestions for improving other people’s thinking.

Sentence Frames: •

My answer is different from ________ because___________. • My___________ (picture, equation, graph) proves my argument because _____________.

Focus

Standards

Curriculum Supports – enVision 2020

Vocabulary