Unit Cost lesson

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

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

Rice Chex Cereal Large = $1. 99 (64 oz) Small = $2. 49 (16 oz) Popcorn Organic OR butter popcorn $2. 99(3 bags) Smart Balance $2. 99 (4 bags) Ranch Dressing Kraft Ranch = $2. 99 (16 oz) Hidden Valley Ranch = $3. 69 (16 oz)

Fractions/Decimal Equivalents ¾ =. 75 ½ =. 50 Need Number Line 0 1/4 1/2 0. 25 0. 5 3/4 0. 75 1

Unit Examples: Price is the cost for each unit. 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

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 8 oz 12 oz 16 oz 32 oz Price $1. 99 $2. 99 $3. 49 $6. 29 Unit Price 24. 875 ¢/oz 24. 917 ¢/oz 21. 813 ¢/oz 19. 656 ¢/oz Based on unit price alone the 32 -oz size is the best buy. The unit price for the 32 -oz size is given by

Place value Compare Decimals 1. 125678 1. 124987 1. 125678 > 1. 124987