6.2.1 Introducing Ratios and Ratio Language
6.2.2 Representing Ratios with Diagrams
6.2.5 Defining Equivalent Lessons
6.2.6 Introducing Double Number Line Diagrams
6.2.7 Creating Double Number Lines Diagrams
6.2.10 Comparing Situations by Examining Ratios
6.2.11 Representing Ratios with Tables
6.2.12 Navigating a Table of Equivalent Ratios
6.2.13 Tables and Double Number Line Diagrams