MA19.5.13

Mathematics (2019) Grade(s): 5

MA19.5.13
Interpret multiplication as scaling (resizing).

Unpacked Content

Knowledge

Students know:

How to interpret multiplicative comparisons.
Strategies to compare products with whole numbers using reasoning and justification.
Example: Which is greater? 5 x 2 x 13 or 13 x 9? 10 x 13 is greater than 9 x 13 because both expressions contain a factor of 13, but the scale factor of 10 will result in a greater product than a scale factor of 9.
Fraction meaning and magnitude of fractions less than and greater than 1.

Skills

Students are able to:

Interpret multiplication as scaling.
Use reasoning to compare products of multiplication expressions.
Reason and explain when multiplying a given number by a fraction why the product will be greater than or less than the original number.

Understanding

Students understand that:

a product reflects the size of its factors.

Vocabulary

Resizing
Scaling
Product
Factor

Aligned Learning Resources

3D Shapes--Let's Learn

"La primera vez que nos conocimos": Regular Verbs in the Preterit

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