Ratios & Proportional Reasoning

Understand ratios, rates, and proportional relationships using real-world contexts and visual models.

Grade 6-8Beginner50 min

About This Lesson

In this lesson, you'll explore how ratios and proportional relationships help us compare quantities and solve real-world problems — from scaling recipes to calculating speeds.

Essential Question

If a recipe calls for 2 cups of flour for every 3 cups of sugar, how much flour would you need for 9 cups of sugar?

Standards

CCSS 6.RP.A.1, 6.RP.A.2, 7.RP.A.2

Learning Objectives

1Define ratio and explain how it compares two quantities
2Identify proportional relationships in tables and graphs
3Solve problems using unit rates and cross-multiplication

Materials Needed

Graph paper
Colored tiles or counters
Ratio tables worksheet

Key Topics

ratiosproportionsratesfractions