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Lesson Plan

4. Multiplying larger numbers using the area model (FP)

teaches Common Core State Standards CCSS.Math.Practice.MP1 http://corestandards.org/Math/Practice/MP1
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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Lesson objective: Multiply multi-digit numbers using arrays and area models. 

This lesson helps to build fluency with multiplying multi-digit numbers. Arrays and area models are used here because they allow for place value decomposition and clearly represent the multiplcation taking place. This work develops students' understanding that place value and the distributive property can decompose the numbers and make multiplying more efficient.

Students engage in Mathematical Practice 7 (Look for and make use of structure ) as they use our place value system to decompose and multiply numbers with arrays and area models. 

Key vocabulary:

  • array
  • base ten block
  • cube
  • decomposition
  • flat
  • place value
  • rod

Special materials needed:

  • base ten blocks
Related content

Appears in

Using multiplication and division strategies with larger numbers

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