Ratio Kitchen
Scale real recipes up or down.
Adjust every ingredient to match the target serving size.
How to play:
1. See a recipe with its original serving size
2. Adjust each ingredient for the new serving size
3. Each ingredient must be within 5% of the correct amount
4. 8 rounds, getting trickier each time
About Ratio Kitchen
Scale a real recipe from 24 servings to 36, and every ingredient has to move by the same ratio — flour, sugar, and butter all have to scale together, or the cookies come out wrong. Measuring cups fill in real time as you dial in the amounts, turning an abstract ratio problem into something with an obviously correct (or incorrect) answer.
It's proportional reasoning with immediate, visual feedback — the same skill behind unit rates and cross-multiplication, just applied somewhere the stakes (and the smell) feel real.
Keep Exploring
More on ratios and fractions
Ratios & Proportional Reasoning: Recipes
Unit rates, cross-multiplication, and CCSS 6.RP standards, taught with the same recipe-scaling idea.
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Teaching Fractions with Visual Models & Games
The fraction foundation ratio work builds on — bar models, area models, and equivalent fractions.
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