Relate Area to Arrays

How do arrays relate to area? Learners use prior knowledge about arrays to think about finding the area of a rectangle in the first of two videos on relating area to multiplication. The resource points out the common error of adding the length and width unit instead of multiplying them. 

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CCSS: Designed
Classroom Considerations

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Pros

  • The review of area and arrays is a good primer before beginning the core lesson
Cons

  • The lesson makes the assumption that the viewer already knows that the area of an array can be found by multiplying, so make sure the class has background knowledge of this before assigning the video
Common Core