Unit 3 • Lesson 1

Understand Ratios

🚀 Session 1: Launch & Concept Exploration

Build foundational conceptual mastery with key terms and visual models.

Ratio

A comparison of two amounts using division

Part-to-Part

Compares ONE PART of a group to ANOTHER PART

Part-to-Whole

Compares ONE PART to the ENTIRE TOTAL

• Ratio = Comparison of two quantities (Order matters!)
• 3 Forms: a to b | a : b | a / b

🎯 Session 2: Guided Problem Solving & Exit Ticket

Deepen your fluency with targeted application problems.

Explain how to model and solve a standard problem for Understand Ratios. Represent your thinking using numbers, models, or words.

Strategic Hint: Break down the problem into equal parts or units. What operation corresponds to separating into equal groups?

Watch Out: Remember not to add denominators when finding common partitions.