Copyright © Swun Math Grade 8 Unit 2 Constructed Response Rubric TE

Unit 1 ∙ Constructed

ResponseSCORING RUBRIC

Unit 2 ∙ Constructed Response

Exponents

TASK 1: Combining Exponents

Answer/Exemplar Standard Points

1a. 7 11 8.EE.1 1

1b. Deana made two errors. The first error was multiplying the bases.

The second error was multiplying the exponents, but they should

have been added. Deanna could decompose the problem to show

that 7 is being multiplied by itself 11 times, so the correct answer is

7 11.

8.EE.1 1

2a.

8.EE.1 1

2b. Add the exponents together.

8.EE.1 1

3a. 8.EE.1 1

3b. First, I used the power to power property to multiply the u in the

denominator. Then I used the division of like bases property to

subtract the exponents and simplify the problem.

8.EE.1 1