Small-group support
Paired ticks mark the same number of jumps.
| cups of juice | students |
|---|---|
| 2 | 6 |
| 4 | ? |
Jonah uses 2 cups of juice for every 6 students at the snack table. The same relationship has to hold for a larger amount.
On a double number line, equal jumps land on paired values. The jump size on the bottom is the base ratio’s second part times the same number of jumps as the top. Lining up unequal jumps makes pairs that are not equivalent.
Problem 1 of 4. A short entry task, a model, guided examples, then a new independent try. Frames are optional.
| cups of juice | students |
|---|---|
| 2 | 6 |
| 4 | ? |
A ratio table shows 2 cups of juice for every 6 students. How many students go with 4 cups of juice?
Support frame: Factor = 4 ÷ 2. Second part = 6 × factor.