2: Introducing Ratios Last updated Mar 27, 2022 Save as PDF 8.1: Designing a Tent Section 9: What are Ratios? Page ID35054 Illustrative MathematicsOpenUp Resources ( \newcommand{\kernel}{\mathrm{null}\,}\) Section 9: What are Ratios?9.1: Introducing Ratios and Ratio Language9.2: Representing Ratios with DiagramsSection 10: Equivalent Ratios10.1: Recipes10.2: Color Mixtures10.3: Defining Equivalent RatiosSection 11: Representing Equivalent Ratios11.1: Introducing Double Number Line Diagrams11.2: Creating Double Number Line Diagrams11.3: Constant Speed11.4: Comparing Situations by Examining RatiosSection 12: Solving Ratio and Rate Problems12.1: Representing Ratios with Tables12.2: Navigating a Table of Equivalent Ratios12.3: Tables and Double Number Line Diagrams12.4: Solving Equivalent Ratio ProblemsSection 13: Part-Part-Whole Ratios13.1: Part-Part-Whole Ratios13.2: Solving More Ratio ProblemsSection 14: Let's Put it to Work14.1: A Fermi Problem14.2: How Much for One?