unit cost lesson. how much do you know about prices at the grocery store? (20 min) price is right...

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Unit Cost lesson

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Page 1: Unit Cost lesson.  How much do you know about prices at the grocery store? (20 min)  Price is Right Grocery Game Price is Right Grocery Game  Practice

Unit Cost lesson

Page 2: Unit Cost lesson.  How much do you know about prices at the grocery store? (20 min)  Price is Right Grocery Game Price is Right Grocery Game  Practice

How much do you know about prices at the grocery store? (20 min) Price is Right Grocery Game Practice Game

Calculate unit cost game show music

Math Concept Overview (15 min) Unit Price Decimal Comparison Inequalities

Calculating Unit Price Worksheet (15 min) Practice on your own

Are you a Savvy Shopper? (20 min) Internet Activity on your own Review Savvy Shopper Who got the best deals???

Extra Time? http://www.mathsisfun.com/measure/unit-price-game.html

Page 3: Unit Cost lesson.  How much do you know about prices at the grocery store? (20 min)  Price is Right Grocery Game Price is Right Grocery Game  Practice

We are going to calculate Unit Price Determine which item is a better value

Page 4: Unit Cost lesson.  How much do you know about prices at the grocery store? (20 min)  Price is Right Grocery Game Price is Right Grocery Game  Practice

Rice Chex CerealLarge = $1.99 (64 oz)Small = $2.49 (16 oz)

PopcornOrganic OR butter popcorn $2.99(3 bags)Smart Balance $2.99 (4 bags)

Ranch DressingKraft Ranch = $2.99 (16 oz)Hidden Valley Ranch = $3.69 (16 oz)

Page 5: Unit Cost lesson.  How much do you know about prices at the grocery store? (20 min)  Price is Right Grocery Game Price is Right Grocery Game  Practice

Fractions/Decimal Equivalents¾ = .75½ = .50

Need Number Line

0 1/4 3/41/2 1

0.25 0.5 0.75

Page 6: Unit Cost lesson.  How much do you know about prices at the grocery store? (20 min)  Price is Right Grocery Game Price is Right Grocery Game  Practice

Unit Price is the cost for each unit. Examples:

Per ounce Per lb Per item such as a bunch of bananas or bag of

candy bars

Formula:Price Per Unit = Price of item divided by # of units

Page 7: Unit Cost lesson.  How much do you know about prices at the grocery store? (20 min)  Price is Right Grocery Game Price is Right Grocery Game  Practice

Find the unit price of a 32 oz bottle of household cleaner and then decide which is the best purchase based on the unit price per ounce.

Size Price Unit Price

8 oz $1.99 24.875 ¢/oz

12 oz $2.99 24.917 ¢/oz

16 oz $3.49 21.813 ¢/oz

32 oz $6.29

The unit price for the 32-oz size is given by$6.29

32 oz

629 cents

32 oz

629 cents

32 oz 19.656 cents per ounce

19.656 ¢/oz

Based on unit price alone the 32-oz size is the best buy.

Page 8: Unit Cost lesson.  How much do you know about prices at the grocery store? (20 min)  Price is Right Grocery Game Price is Right Grocery Game  Practice

Place value

1.125678 1.124987

Compare Decimals

1.125678

1.124987

>