 Math, Grade 6
 Ratios

Equivalent Ratios
 Equivalent Ratios
 Comparing Numbers with Ratios
 Expressing Ratios
 Tape Diagrams
 Double Number Lines
 Double Number Line for Modeling
 Expressing Ratios Numerically
 Student Project
 Using Ratio Tables to Solve Problems
 Relate Ratio Tables to Graphs
 Glide Ratio
 Apply Your Knowledge about Ratios
 Finding Percents
 Percent Statements about Data
 Percents Greater than 100%
 Student Self Check
 Gallery Problems
 Student Presentations
 Peer Review
Instructor Overview
Students are asked to fix a botched mixture that does not follow a given recipe. To fix the mixture, students must find a ratio of eggs to flour that is equivalent to 2:3, but without explicit instruction on the concept of equivalent ratios.
Key Concepts
Students are invited to investigate the underlying idea of equivalent ratios by “correcting” the ratio between two ingredients in a botched mixture that does not follow a given recipe.
Goals and Learning Objectives
 Explore a problem based on a recipe with two ingredients.
 Share approaches, clarify reasoning, and develop clear explanations of how to know a mixture has the right balance of ingredients.
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