# 8.7 Exponents and Scientific Notation

In grade 6, students studied whole-number exponents. In this unit, they extend the definition of exponents to include all integers, and in the process codify the properties of exponents. They apply these concepts to the base-ten system, and learn about orders of magnitude and scientific notation in order to represent and compute with very large and very small quantities.

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### Lessons

#### Exponent Review

#### Exponent Rules

#### Scientific Notation

- 9Describing Large and Small Numbers Using Powers of 10
- 10Representing Large Numbers on the Number Line
- 11Representing Small Numbers on the Number Line
- 12Applications of Arithmetic with Powers of 10
- 13Definition of Scientific Notation
- 14Multiplying, Dividing, and Estimating with Scientific Notation
- 15Adding and Subtracting with Scientific Notation