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Our punch recipe uses 2 cups of juice for every 3 cups of sparkling water. For the class party, we pour in 10 cups of juice. How much sparkling water do we need so it tastes the same?
In this video
- Make more batches of the same recipe with pictures.
- Organize the batches in a ratio table.
- Multiply both numbers by the same amount, the way it's done in class.
Try it together
3 : 5 = 12 : ?
Show the answer
20
3 × 4 = 12, so multiply the other number by 4 too: 5 × 4 = 20. That's 4 batches of the recipe.
Ask, don't tell
“How many batches did we make to get 10 cups of juice?”
“What did we multiply the top by? Did we do the same to the bottom?”
The workbook these videos go with
Math for Parents – 6th Grade, Book 2: Ratios & Percents. Picture-first lessons on ratios, rates, unit prices, and percents, with “Ask, don't tell” prompts on every page, worked examples, real-world missions, and answer keys with coaching notes, so you can help even if it's been years since you learned it.
On Amazon Sunday, November 15