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Common Core: Math
CCLS  Math: 1.OA.6
 Category
 Operations And Algebraic Thinking
 SubCategory
 Add And Subtract Within 20.
 State Standard:
 Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 – 4 = 13 – 3 – 1 = 10 – 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 – 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
52 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...

 Grade 1’s Module 1 closes with Topic J, where students spend Lesson 38 exploring the addition chart (similar to Topic F) and looking for patterns within the context of subtraction (MP.7, MP.8, 1.OA.6...

 Similar to Topic E’s addition methods, Topic I allows students to learn methods for subtraction which involve subtracting 0 and 1, subtracting the whole number, subtracting one less than the whole...

 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...

 In Topic C, students develop a more robust understanding of addition word problems, moving beyond the Kindergarten problem types (K.OA.2) by reviewing put together with result unknown and add to with...

 As students move into Topic B, they gain momentum with putting together, composing and decomposing, and counting on to determine the total. Students use both concrete and pictorial situations to...

 In this first module of Grade 1, students make significant progress towards fluency with addition and subtraction of numbers to 10 (1.OA.6). They are presented with opportunities intended to advance...

 Objective: Solve subtraction problems using ten as a unit, and write twostep solutions.

 Objective: Solve addition problems using ten as a unit, and write twostep solutions.

 Objective: Solve addition and subtraction problems decomposing and composing teen numbers as 1 ten and some ones.

 Objective: Strategize to solve take from with change unknown problems.

 Objective: Solve add to with change unknown problems, relating varied addition and subtraction strategies.

 Objective: Share and critique peer solution strategies for take from with result unknown and take apart with addend unknown word problems from the teens.

 Objective: Subtract 7, 8, and 9 from teen numbers.

 Objective: Compare efficiency of counting on and taking from ten.

 Objective: Model subtraction of 8 from teen numbers.

 Objective: Model subtraction of 8 from teen numbers.

 Objective: Relate counting on to making ten and taking from ten.

 Objective: Model subtraction of 9 from teen numbers.

 Objective: Model subtraction of 9 from teen numbers.

 Objective: Solve word problems with subtraction of 9 from 10.