## Unit 2: The Number System

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### Overview

*In this unit students will be expanding their previous understanding of positive and negative numbers from 6 ^{th} grade. Students will use a variety of strategies and applications to discover operations of rational numbers in a real world context. Students will derive the definition of additive inverse through various media forms. Students will be able to reason through their understanding of multiplying and dividing rational numbers to solve applications involving the concept of long division. *

**Developed By:** Debbie Conover & Anna Taylor

## Pre-Unit Assessment

## Lesson 1

Adding Rational Numbers

## Lesson 2

Subtracting Rational Numbers

## Lesson 3

Multiplying Rational Numbers

## Lesson 4

Dividing Rational Numbers