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Day 7 ratio ccss Document Transcript

  • 1. AIM: Comparing Ratios Do NowYou decide to paint your room.  3 gallon of paint costs 89.94 at Home Depot.  You will need 2 gallons of paint to paint your room and the inside of your closet.  Estimate how much will have to spend? Rate:   $ Unit Rate:  $ gallons     1 gallon 1
  • 2. Anticipatory Set Below is the ingredient list for Chocolate Chip cookies.   The recipe makes 60 cookies.  Double the ingredients in  the recipe so that you can make 120 cookies.• 2  cups all­purpose flour • 1/2 teaspoon baking soda • 1/4 teaspoon salt • 2 sticks butter, softened • 1 cup granulated sugar • 3/4 cup packed brown sugar • 1 teaspoon vanilla extract • 2 large eggs • 2 cups chocolate chips • 1/3 cup chopped nuts Why is it so important to measure correctly when  baking? 2
  • 3. 1 Batch 2 Batches Write a ratio to compare the cups of flour to the cups of  sugar: Ratio: Ratio: Simplify: Simplify: Will the cookies still taste the same if you double the  ingredients? Why? 3
  • 4. Batch 1 Batch 2 The following person made a mistake when doubling the  recipe.  They used 3 cups of sugar rather than 2.  Write a  ratio and unit rate to compare the cups of flour to the cups  of sugar. Ratio: Ratio: Simplify: Simplify: Will the cookies still taste the same? Why or Why Not? If theyve already mixed the ingredients(they cant  separate the sugar from the flour), how might they  attempt to fix this problem? 4
  • 5. “Art Class”  5
  • 6. c) Carefully plot and label a point for each mixture on the coordinate plane below: Number of blue parts Number of yellow partsd) Draw a line connecting each point to the origin.  What do the mixtures that have the same shade of green have in common? 6
  • 7. 7
  • 8. 8
  • 9. Before you leave:Go back to the 5 mixtures.Can you tell what percent ofeach mixture each color is? Find the percent of each color (part) in each mixture! 9
  • 10. HomeworkCastle Homework #22 due5/30/12 10