Ratio Tables Objective: I can explore how to find two or more ratios that describe the same relationship

Start Thinking! A ratio is a comparison of two quantities. How do ratios relate to making cookies?

Activity 1 Making a Mixture Work with your table mates. Complete part A only, then stop. Once we have discussed part A complete parts B-F with your table mates.

Activity 2 Using a Multiplication Table Work with your tablemates to complete Activity 2. Remember the ratio of lemonade to iced tea is 1 to 3.

Activity 3 Using More than One Ratio to Describe a Quantity This is a whole new activity, and has nothing to do with Activity 1 or 2. Work through parts A-D with your table mates.

Practice Questions Answer questions 4 and 5 from the Big Ideas Math book.Big Ideas Math book.

Cool Down If you use 2 parts red and 5 parts blue to form a shade of purple, then what other quantities could you also use to produce the same shade?

Warm Up

Let me tell you a story… I took a 6 day boat trip down a river. I’ve listed how many miles we travelled and the change in elevation. See if you can figure out the missing numbers Number of miles 1234 Drop in Elevation ??80??

Equivalent Ratio Two ratios that define the same relationship. You can find equivalent ratios by: – Adding or subtracting quantities in equivalent ratios – Multiplying or dividing each quantity in a ratio by the same number

On your own… What if you use 24 cups of water. How much sugar do you need? You make a sweeter mixture using 3 parts water for every 1 part sugar. How much sugar do you need if you use 9 quarts of water?

On your own… What if you mix 2 pints of yellow paint for every 3 pints of blue paint? How much green paint will you make if you used 5 pints of yellow paint?

Practice Problems Complete Practice Problems 1-7 on your own.