# 5.NF.B.5, 5.NF.B.5.A, and 5.NF.B.5.B Multiplication as Scaling

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Common Core Standards
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1. These Lesson Plans explain that multiplication can be thought of as scaling. This means that the product in a multiplication problem is either greater than, less than, or equal to one factor based on the size of the other "scale" factor.

2. Students will practice and solve problems using the four different scale factor rules. These rules are as follows:

(i) Multiplying by whole number greater than one results in a greater product.

(ii) Multiplying by a fraction greater than one also results in a greater product.

(iii) Multiplying by a fraction less than one results in a smaller product.

(iv) Multiplying by a fraction equal to one results in an equivalent product.

3. Students also will gain an understanding that finding a equivalent fraction is the same as multiplying the original fraction by one. Students will model fraction equivalence.
Total Pages
25 pages
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Teaching Duration
1 Week
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