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Common Core: Math
CCLS  Math: 3.OA.5
 Category
 Operations And Algebraic Thinking
 SubCategory
 Understand Properties Of Multiplication And The Relationship Between Multiplication And Division.
 State Standard:
 Apply properties of operations as strategies to multiply and divide.2 Examples: If 6 × 4 = 24 is known, then 4 × 6 = 24 is also known. (Commutative property of multiplication.) 3 × 5 × 2 can be found by 3 × 5 = 15, then 15 × 2 = 30, or by 5 × 2 = 10, then 3 × 10 = 30. (Associative property of multiplication.) Knowing that 8 × 5 = 40 and 8 × 2 = 16, one can find 8 × 7 as 8 × (5 + 2) = (8 × 5) + (8 × 2) = 40 + 16 = 56. (Distributive property.)
11 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...

 In Topic F, students multiply by multiples of 10 (3.NBT.3). To solve a fact like 2 × 30, they first model the basic fact 2 × 3 on the place value chart. Place value understanding helps them to...

 Topic D introduces units of 9 over three days, exploring a variety of arithmetic patterns that become engaging strategies for quickly learning facts with automaticity (3.OA.3, 3.OA.7, 3.OA.9). Nines...

 Topic C anticipates the formal introduction of the associative property with a lesson on making use of structure to problem solve. Students learn the conventional order for performing operations...

 Topic B introduces units of 6 and 7, factors that are well suited to Level 2 skipcounting strategies and to the Level 3 distributive property strategy, already familiar from Module 1. Students...

 Topic A begins by revisiting the commutative property. Students study familiar facts from Module 1 to identify known facts using units of 6, 7, 8, and 9 (3.OA.5, 3.OA.7). They realize that they...

 Topic F introduces the factors 5 and 10, familiar from skipcounting in Grade 2. Students apply the multiplication and division strategies they have used to mixed practice with all of the factors...

 Topic E shifts students from simple understanding to analyzing the relationship between multiplication and division. Practice of both operations is combined—this time using units of 4—and a lesson...

 In Topic C, students use the array model and familiar skipcounting strategies to solidify their understanding of multiplication and practice related facts of 2 and 3. They become fluent enough with...

 Grade 3 Module 3: Multiplication and Division with Units of 0, 1, 6–9, and Multiples of 10 This 25day module builds directly on students’ work with multiplication and division in Module 1. Module 3...

 Grade 3 Module 1: Properties of Multiplication and Division and Solving Problems with Units of 2–5 and 10 This 25day module begins the year by building on students’ fluency with addition and...