Module 1, Lesson 3 Warm-Up 3000 + 4000 600 + 2000 20 + 3000 600 + 300 + 20 4000 + 300 + 200 70 + 300 + 4000 How many inches are in 3 feet? How many millimeters are in 3 centimeters?

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

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?

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.

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?

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?

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

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