## Fractions

## Scaling

** I can think of multiplication as the scaling of a number (similar to a scale on a map.) 5.NF.5**

5.NF.5. Interpret multiplication as scaling (resizing), by:

a. Comparing the size of a product to the size of one factor on the basis of the size of the other factor, without performing the indicated multiplication.

b. Explaining why multiplying a given number by a fraction greater than 1 results in a product greater than the given number (recognizing

multiplication by whole numbers greater than 1 as a familiar case); explaining why multiplying a given number by a fraction less than 1 results in a

product smaller than the given number; and relating the principle of fraction equivalence

*a/b*= (

*n*x

*a*)/(

*n*x

*b*) to the effect of multiplying

*a*/

*b*by 1.