1. Module 1, Lesson 3 Warm-Up 3000 + 4000 600 + 2000 20 + 3000
How many inches are in 3 feet?
How many millimeters are in 3 centimeters?

2. Equivalent Ratios Student Goal/Objective:
Students will use a diagram to solve problems with equivalent ratios when three of the four values are known.

3. Quick Ratio Review:
The ratio of the number of sunny days to the number of cloudy days in this town is 3:1. What are two other ways to correctly write the ratio 3:1?
There are 5 times as many girls as there are boys on the soccer team. This can be written as 5:1. What are two other equivalent ratios to 5:1?

4. Student Example:
Shanni and Mel are using ribbon to decorate a project in their art class. The ratio of the length of Shanni’s ribbon to the length of Mel’s ribbon is 7:3. Show how to fill in the ratio box (hashtag diagram) correctly with this information.

5. Student Example:
Mason and Laney ran laps to train for the long-distance running team. The ratio of the number of laps Mason ran to the number of laps Laney ran was 2 to 3.
If Mason ran 4 miles, how far did Laney run? (Use a hashtag diagram to organize on these types of problems.)
If Laney ran 90 meters, how far did Mason run?

6. Student Example:
Josie took a vocabulary test. The ratio of the number of problems Josie got incorrect to the number of problems she got correct is 2:9.
If Josie missed 8 questions, how many did she get correct?

7. Review of Missing Numbers in an Addition or Subtraction Equation:
Find the missing value in each of these equations:
J – 14 = 6
14 – K = 6
G + 5 = 18
5 + R = 18

8. Assignment:
Module 1, Lesson 3 worksheet is due tomorrow!