Unit prices
Key Notes :
Understanding Unit Price:
Explain that unit price is the cost of one unit of a product. For example, if a pack of 6 juice boxes costs $4.50, the unit price is $4.50 ÷ 6 = $0.75 per juice box.
Comparing Products:
Teach students that unit prices help compare the cost efficiency of similar products. A lower unit price indicates a better value.
Real-Life Examples:
Use examples from daily life to illustrate unit prices, such as comparing prices of different-sized packages of snacks or drinks.
Calculating Unit Prices:
Guide students through the process of calculating unit prices step-by-step, emphasizing division and understanding the concept of price per unit.
Importance of Unit Price:
Discuss why it’s important to understand unit prices to make informed purchasing decisions and manage money wisely.
Word Problems:
Include word problems that involve calculating unit prices, encouraging students to interpret the problem, perform calculations, and find solutions.
Learn with an example
➡️ A 5-pack of magnets costs ₹71.50.
What is the unit price?
₹ _______ per magnet
Find the unit price. Divide the total cost by the number of magnets.
₹71.50 ÷ 5 = ₹14.30
The unit price is ₹14.30 per magnet.
➡️ A 6-pack of scented candles costs ₹114.00.
What is the unit price?
₹ _______ per candle
Find the unit price. Divide the total cost by the number of candles.
₹114.00 ÷ 6 = ₹19.00
The unit price is ₹19.00 per candle.
➡️ Which is the better buy?
- 3-kilogram bag of gravel for ₹634.50
- 5-kilogram bag of gravel for ₹1,058.00
Find each unit price. Divide the total cost by the number of kilograms.
₹634.50 ÷ 3 = ₹211.50
₹1,058.00 ÷ 5 = ₹211.60
The unit price for the 3-kilogram bag is lower than for the 5-kilogram bag. The 3-kilogram bag is the better buy.
let’s practice!