2.OA.2 | EngageNY

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Common Core: Math

CCLS - Math: 2.OA.2

Category: Operations And Algebraic Thinking
Sub-Category: Add And Subtract Within 20.
State Standard:: Fluently add and subtract within 20 using mental strategies.2 By end of Grade 2, know from memory all sums of two one-digit numbers.

9 Results

Video

Math Studio Talk: Common Core Instruction for 2.OA

0:14:48

Math Studio Talk: Common Core Instruction for 2.OA

Jan 26, 2016 - Welcome to “Math Studio Talk” a video series that provides games, activities and models to help students develop flexible thinking and deep understanding of math concepts from kindergarten to Grade 5...
Curriculum Topic

Grade 2 Mathematics Module 1, Topic B

Jan 26, 2016 - Now that students have practiced their kindergarten and Grade 1 skills, they are ready to become more ﬂuent with addition problems, such as 8 + 7 and 5 + 9, where they must cross the ten. In Lesson 3...
Curriculum Topic

Grade 2 Mathematics Module 1, Topic A

Jan 26, 2016 - In this first module of Grade 2, students make significant progress towards fluency with sums and differences within 20 (2.OA.2). Fluency, coupled with a fundamental grasp of place value, rests on...
Curriculum Lesson

Grade 2 Mathematics Module 1, Topic B, Lesson 5

Jan 26, 2016 - Objective: Decompose to subtract from a ten when subtracting within 20 and apply to one-step word problems.
Curriculum Lesson

Grade 2 Mathematics Module 1, Topic B, Lesson 4

Jan 26, 2016 - Objective: Make a ten to add and subtract within 20.
Curriculum Lesson

Grade 2 Mathematics Module 1, Topic B, Lesson 3

Jan 26, 2016 - Objective: Make a ten to add within 20.
Curriculum Lesson

Grade 2 Mathematics Module 1, Topic A, Lesson 2

Jan 26, 2016 - Objective: Make number bonds through ten with a subtraction focus and apply to one-step word problems.
Curriculum Lesson

Grade 2 Mathematics Module 1, Topic A, Lesson 1

Jan 26, 2016 - Objective: Make number bonds of ten.
Curriculum Module

Grade 2 Mathematics Module 1

Sep 06, 2016 - Grade 2 Module 1: Sums and Differences to 100 Module 1 sets the foundation for students to master sums and differences to 20. Students subsequently apply these skills to fluently add one-digit to two...