1. Proportions
Ratios / Rates
Unit 2

2. Monday
Today I am learning how to use ratios and rates to solve real-world problems because this will allow me to make comparisons and solve problems.
Agenda
Warm up : Example in MSG: Lizette and Miguel/Cookies
P. 236 Example #3 ; p. 237 #1
P.237 #2-8 with a partner
Closing Question: How can you use unit rates and multiplication to solve for missing measures in equivalent ratio problems?
Homework
P. 243 #2 & #4

3. p. 236 Bar Diagram Investigation 2: Lizette and Miguel
Lizette can decorate 4 cookies in 12 minutes. If Miguel can decorate cookies at the same rate, how many minutes will it take him to decorate 24 cookies?
Step 1 : Use a Bar Diagram: 1 cookie=3 minutes
Step 2: Label each section of the Bar Diagram with “1 cookie”
12 ➗ 4, or 3 minutes

4. p. 236 Continued Investigation #3: Devon’s Driving
Step 1 : Use a Bar Diagram
1 hr = 57 miles
Step 2: Label each section “1 hour”, Devon drove 171 ➗ 3 or 57 miles
So, Devon will drive 7 x 57, or 399 miles in 7 hours.

5. p. 237 #1
The miles traveled in 5 hours at a rate of 189 miles in 3 hours miles
Step 1 Draw the Bar Diagram
Step 2 fill in the Bar Diagram: “1 hour” in each of the 3 sections, because he drove for 3 hours.
Step / 3 = 63 miles in 1 hour

6. p. 237 #2-8 Answers 2. 128 ice cubes 3. $2.90 4. 144 minutes
squares
minutes
beads
8. 84 lemons

7. Final thoughts
How can you use unit rates and multiplication to solve for missing measures in equivalent ratio problems?

8. Tuesday
Today I am learning how to use ratios and rates to solve real-world problems because this will allow me to make comparisons and solve problems.
Agenda
Warm up: p. 246 #20 Adeline’s garden (put in MSG if you don’t have your book)
P. 240 Example #2; p. 242 Example #2; p. 243 Example #3
Final Thoughts: How can you use a proportion to solve a ratio problem when you are missing part of the ratio?
Homework:
P. 243 #1; p. 245 #17

9. p. 240 #2
Method 1: Bar Diagram
Method 2: Equivalent fractions

10. p. 242 #2
If one out of 12 students (unit rate) at a school share a locker, how many share a locker in a school of 456 students?
Look at Example #2 p.240 (Which method would you use to solve?)
Method 1: Method 2:

11. p. 243 #3
A Clydesdale drinks about 120 gallons of water every 4 days. At this rate, about how many gallons of water does a Clydesdale drink in 28 days?
Method 1: Method 2:

12. Final thoughts
How can you use a proportion to solve a ratio problem when you are missing part of the ratio?
Example: There is a ratio of 2 kittens for every 3 puppies at an animal shelter. If there are 24 kittens at the animal shelter, how many puppies would you expect to find?

13. Wednesday
Today I am learning how to use ratios and rates to solve real-world problems because this will allow me to make comparisons and solve problems.
Agenda
Review homework
Warm up : MSG notes: Mrs. Espinoza’s class
Ratio and Rates problem solving practice: Choose either Ratio or Rate
Work in partners
Answers to Ratio and Rates
Final thoughts:
Homework:
Complete 8 questions, if incomplete

14. Warm up ?
There are 4 boys for every 3 girls in Mrs. Espinoza’s class. If she has 28 students, how many would you expect to be girls?

15. Final thoughts How do we know we are solving for a ratio?
How do we know we are solving for a rate?
What information tells us we are solving for a ratio or rate?

16. Thursday
Today I am learning how to use ratios and rates to solve real-world problems because this will allow me to make comparisons and solve problems.
Agenda
Review homework, if answers were not covered Wednesday
Proportions and Converting Measurements
Final thoughts: What measurement could you relate to in your life?
Homework:
Proportions homework sheet in MSG

17. Friday
Today I am learning how to use ratios and rates to solve real-world problems because this will allow me to make comparisons and solve problems.
Agenda
Review homework answers and questions
Some students will get caught up on their work / others will begin the Quiz
Quick Write: in MSG
Homework:
Study MSG notes and examples. Practice method 1 and 2 for proportions