Lesson plan

Multiply 2-digit multiples of 10 by 2-digit multiples of 10 by using the area model

teaches Common Core State Standards CCSS.Math.Content.4.NBT.B.5 http://corestandards.org/Math/Content/4/NBT/B/5
teaches Common Core State Standards CCSS.Math.Content.4.OA.A.3 http://corestandards.org/Math/Content/4/OA/A/3
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Big Idea(s): Compose and decompose base-10 units. Use place value understanding and properties of operations to perform multi-digit arithmetic visual representations & unknowns. Vocabulary: factor pairs, multiples, equation, area models, rectangular array Special Materials: graph paper, optional colored pencils, optional