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Common Core: Math
CCLS  Math: 1.OA.3
 Category
 Operations And Algebraic Thinking
 SubCategory
 Understand And Apply Properties Of Operations And The Relationship Between Addition And Subtraction.
 State Standard:
 Apply properties of operations as strategies to add and subtract.3 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)
20 Results

 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...

 Topic C provides students with practice solving add to with change unknown, take from with change unknown, put together with addend unknown, and take apart with addend unknown word problems (1.OA.1...

 Topic B focuses on the take from ten Level 3 strategy (1.OA.6). Students begin with word problems calling on them to subtract 9 from 10 in Lessons 12 and 13, first with concrete objects, then with...

 Topic A begins with students solving word problems with three addends (1.OA.2) as a way for them to begin to explore the make ten Level 3 strategy in a meaningful context. With problems that always...

 Topic F continues with the theme of more efficient strategies coupled with deep understanding to solve addition problems within 10. In Lesson 21, students begin to internalize doubles and doubles...

 Topic E leads students to a very intentional understanding and application of the equal sign and the commutative property of addition (1.OA.3 and 1.OA.7). Lessons 17 and 18 ask students to use...

 Objective: Solve problems with addends of 7, 8, and 9.

 Objective: Compare efficiency of counting on and making ten when one addend is 8.

 Objective: Make ten when one addend is 8.

 Objective: Make ten when one addend is 8.

 Objective: Use the commutative property to make ten.

 Objective: Compare efficiency of counting on and making ten when one addend is 9.

 Objective: Make ten when one addend is 9.

 Objective: Make ten when one addend is 9.

 Objective: Use the associative and commutative properties to make ten with three addends.

 Objective: Look for and make use of repeated reasoning on the addition chart by solving and analyzing problems with common addends.

 Objective: Apply the commutative property to count on from a larger addend.

 Objective: Represent the same story scenario with addends repositioned (the commutative property).

 Grade 1 Module 2: Introduction to Place Value Through Addition and Subtraction Within 20 Module 2 serves as a bridge from students' prior work with problem solving within 10 to work within 100 as...

 Grade 1 Module 1: Sums and Differences to 10 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...