1. MATH IN CTE
Unit Cost lesson

2. GAME PLAN (8/12/2010) Objective: Consumer awareness, cost calculations
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?

3. Price iS Right We are going to calculate Unit Price
Determine which item is a better value

4. PRICE IS RIGHT Lucky Charms Popcorn Ranch Dressing
Large = $6.29 (64 oz)
Small = $2.99 (16 oz)
Popcorn
PopSecret = 2.00 (3 bags)
Safeway Popcorn = 1.89 (3 bags)
Ranch Dressing
Kens Steakhouse Ranch = $3.99 (16 oz)
Wishbone Ranch = $2.00 (16 oz)

5. Converting FRACTIONS/Rounding
Fractions/Decimal Equivalents
¾ = .75
½ = .50
Need Number Line
1/4
1/2
3/4 1
0.25
0.5
0.75

6. How to calculate unit price
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 / # of units

7. Example Size Price Unit Price 8 oz $1.99 24.875 ¢/oz 12 oz $2.99
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
¢/oz
12 oz
$2.99
¢/oz
16 oz
$3.49
¢/oz
32 oz
$6.29
Based on unit price alone the 32-oz size is the best buy.
¢/oz
The unit price for the 32-oz size is given by

8. > INEQUALITIES Place value 1.125678 1.124987 Compare Decimals
Compare Decimals
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