Integers & the Number Line

Extend understanding of the number line to include negative numbers, and apply operations with integers in real-world contexts.

Grade 6-8Beginner45 min

About This Lesson

In this lesson you'll explore integers — positive and negative numbers — and use a number line to add, subtract, and compare them. Negative numbers appear everywhere in real life: below-zero temperatures, debt, sea level, and football yardage!

Essential Question

A football team loses 7 yards on one play and gains 12 on the next. What is the net yardage? How did you figure it out?

Standards

CCSS 6.NS.C.5, 6.NS.C.6, 6.NS.C.7

Learning Objectives

1Plot and compare positive and negative integers on a number line
2Find absolute value and explain its meaning
3Add and subtract integers using models and rules

Materials Needed

Number line floor tape
Integer chips (red/yellow)
Thermometer visual

Key Topics

integersnegative numbersnumber lineabsolute value