Lesson plan

Solve two-digit multiplication problems by using an 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.Practice.MP8 http://corestandards.org/Math/Practice/MP8

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Big Ideas: An area model can be used to solve multi-digit multiplication problems. In this lesson, students use an area model to solve two-digit by two-digit multiplication problems. Building fluency with the area model for multiplication is crucial as students continue to develop their understanding of multiplication and division concepts; a firm understanding of the area model will prepare students for division of larger numbers. Vocabulary: area model, product, factor, decompose Special Materials: base 10 blocks (optional)