Name: ___________________________________________ Date: ________________ Class:______________

Learning Objective: I will be able to describe real-world situations using ratio language A to B or A:B. I will be able to represent ratio relationships using diagrams.

Notes from previous class:A ratio is a comparison of two quantities expressed with a phrase such as “the ratio of 3 to 5” which means “3 for every 5”. Such ratio comparisons are often written as fractions and in the ratio notation.All these notations represent the ratio of 3 to 5:35

3 to 5

Do Now

1. How would Lakisha compare the eighth grade and seventh grade goals?________________________________________________________

________________________________________________________

________________________________________________________

2. What do the 2 and 3 in Kimi’s comparison mean?_______________________________________________

______________________________________________________________________________________________

3. Complete this statement.For every 30 dollars the sixth graders plan to collect, the seventh graders plan to collect _________ dollars.

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Problem 2A. On your fundraising thermometers, partition each thermometer and label each mark with the

dollar value.Describe your strategies for partitioning:___________________________________________________________________________________________________

___________________________________________________________________________________________________

___________________________________________________________________________________________________

B. Ben said: For every $60 the sixth graders plan to raise, the seventh graders plan to raise $90.

Luna said: For every $30 the sixth graders plan to raise, the seventh graders plan to raise $45.

Do you agree with each person’s claim? How can you use the thermometers to check?

___________________________________________________________________________________________________

___________________________________________________________________________________________________

___________________________________________________________________________________________________

C. Use the thermometers to write two more “for every” claims that compare the fundraising goals.

1. _________________________________________________________________________________________________

2. _________________________________________________________________________________________________

D. You can write each of the comparisons in B as a ratio.The ratio of the sixth grade goal to the seventh grade goal is 60 to 90, or 60:90.

The ratio of the sixth grade goal to the seventh grade goal is 30 to 45, or 30:45.

Rewrite the comparisons from C using the ratio notation.

1. _________________________________________________________________________________________________

2. _________________________________________________________________________________________________

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Name: ___________________________________________ Date: ________________ Class:______________

HomeworkLearning Objective: I will be able to describe real-world situations using ratio language A to B or A:B. I will be able to represent ratio relationships using diagrams.

Part 1Abigail mixed 2 cups of white paint with 6 tablespoons of black paint. Determine whether each of the following statements is true or false, and explain why.

a. There is 1 cup of white paint for every 3 tablespoons of black paint.

b. The ratio of the number of cups of white paint to the number of tablespoons of black paint is 1:3.

c. There are 3 tablespoons of black paint per cup of white paint.

d. For each tablespoon of black paint there are 3 cups of white paint.

Part 2Clara mixed 8 cups of flour with 2 pints of water to make paste.

1. Draw a diagram to represent the situation.2. Describe the relationship between flour and water in the paste in at least four different ways.

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