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Subtopic: Arrays

Resource Grade Level Media Type
Factors, Arrays and Commutativity  

Factors, Arrays and Commutativity
Students look at different arrangements of desks, discuss the number of factor pairs and relate this to the commutative property of multiplication. They learn why they must try factors up to the square root of a number.

5-8 Lesson Plan
Harry the Substitute Teacher  

Harry the Substitute Teacher
Harry and his students look at various arrangements of classroom desks in this video from Cyberchase.

4-8 QuickTime Video