Bloomin' GeniusPlayback speed:
A fruit punch recipe uses 2 cups of orange juice for every 3 cups of sparkling water. How can we compare the juice to the water? What part of the punch is juice?
In this video
- Picture “for every” with cups of juice and cups of water.
- Tell part-to-part ratios from part-to-whole ratios.
- Write one ratio three ways: with words, a colon, and a fraction.
Try it together
A class has 12 girls and 9 boys. Write the ratio of boys to girls, then boys to all students.
Show the answer
9 : 12 and 9 : 21
Boys come first, so 9 goes first. For “all students,” add first: 12 + 9 = 21. (9 : 12 can also be written 3 : 4.)
Ask, don't tell
“Which did the recipe name first, juice or water?”
“If we say water first, what changes?”
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