Ratios Using Double Number Lines

Ratios Using Double Number Lines
Introduction

Double number lines are a visual tool for comparing two related quantities. They help you understand ratios by showing how the two quantities increase or decrease toget...

Imagine you’re walking and you take 2 steps for every 1 step your father takes. This is a ratio of 2 to 1.

A ratio compares two amounts and tells us how much of one thing there is compared to another.

We can show this ratio on a double number line. On the top line, you mark your steps: 2, 4, 6, 8. On the bottom line, you mark your f...