To warm up: how do you know that Kriti’s decorating problem involves a ratio? Be
as specific as possible.
How many grams of glue will Kriti need for 1 inch of ribbon? Solve this problem
using a picture or reasoning. Remember to include the meaning of any operations you
use!
How many grams of glue will Kriti need for 13 inches of ribbon? Explain why your
answer to the previous problem makes this problem easier to answer. What is a unit
rate and how did we use it here?
Challenge: use a unit rate to find how many inches of ribbon Kriti will use with 7.3
grams of glue.
Now, we want to find how many ounces of glue Kriti will use with 21 inches of ribbon. Maybe you already know the answer to this question, but I set up this proportion. \[ \frac{2}{7} = \frac{x}{21} \]
What does the fraction or the division problem mean in relationship to Kriti’s
decorating problem? (Is this related to our work on the previous page?)
What does the fraction or the division problem mean in relationship to Kriti’s
decorating problem?
Why should be equal to in this story situation?
2025-08-13 00:51:04