Comparing & Scaling Unit: 1.3 Comparing Ratios 1) Learning Target: To compare mixtures I can write part-to-part and part-to-whole ratios. Homework: 1) Complete Notes on pg. 8 of CS Inv. 1 by watching the Zaption Video Tour for CS ) 30 mins of MathXL for School Warm-Up: Monica wants to make chocolate milk for her family. Monica likes it just as much chocolate as milk. Her brother likes it REALLY chocolatey. Her mother wants only milk. Her dad likes just a little chocolate. Help Monica determine the mix for each member of her family. What ratio of chocolate is needed to make 1 C. of chocolate milk? What ratio of milk is needed to make 1 C. of chocolate milk? What is the total ratio of chocolate and milk? Monica Brother Mom Dad

VOCABULARY : part-to-part ratio part-to-whole ratio

HW Review: part-to-part part part-to-whole part whole 5:145/145 to 145:95/95 to 99:149/149 to 14 1:31/31 to 31:21/21 to 22:32/32 to 3 3:83/83 to 83:53/53 to 5 5:85/85 to 8

These are called: scaling ratios

In table groups work on p Part-to-whole Ratio 1 : 4 Scale up 12 : oz. pitcher Double check: 1 can concentrate = 12 oz. 3 cans water = 36 oz. Total = 48 oz. A. A typical can of o.j. concentrate holds 12 fluid oz. The standard recipe is: How large of a pitcher will you need to hold the juice made from a typical can? (Show or explain your answer)

B.A typical can of lemonade concentrate holds 12 fluid oz. The standard recipe is: How large of a pitcher will you need to hold the lemonade made from a typical can? (Show or explain your answer) Part-to-whole Ratio 1 : 5 ⅓ Scale up 12 : 64 oz. 64 oz. pitcher Double check: 1 can concentrate = 12 oz. 4⅓ cans water = 52oz. Total = 64 oz.

Part-to-whole Ratio 1 : 5 ⅓ Scale up 12 : 64 oz.

1 Gallon = 128 oz. 1 : 3 (part to part) 1 : 4 (part to whole) x : 128 (scale factor of 32) 32 : 128 She needs 2 (16 oz.) cans! 1 : 4 (Part-to-whole) Scale up 16 : oz. container

15 oz. of lemonade concentrate 1 : 4 ⅓ (part to part) 1 : 5⅓ (part to whole) scale factor of oz : 80 oz He needs a pitcher large enough to hold 80 oz.

Think of these ratios as equivalent fractions. Hint? cans of concentrate juice made in one recipe, in cans Ounces (oz.) of juice she wants to make Ounces (oz.) of concentrate she needs

Comparing & Scaling Unit: 1.3 Comparing Ratios Did I reach my Learning Target: To compare mixtures I can write part-to-part and part-to-whole ratios. Homework: 1)Complete Notes on pg. 8 of CS Inv. 1 by watching the Zaption Video Tour for CS ) 30 mins of MathXL for School