# Print

## A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

• Bring these devices into the lesson.

4. Cut them out and place them around your class / school.

## B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

## C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

### Question

1. The price of an item is increased by 2%. By what fraction is he price increased?1/50
2. A girl spends 25% of her money on food and 40% on clothes. What fraction of her money does she have left?7/20
3. What percentage is \$35.00 out of \$140.00?25%
4. Mrs. Marshal's monthly pay is \$3000.00. She gets a 5% increase the following month. What is the amount of her increase in salary?\$150
5. The average cost of food increase from \$38.00 to \$40.00. What is the percentage increase?5.26%
6. A rental car company charges \$200.00 per day plus \$0.20 for each mile driven. Mrs Haynes hires a car for 3 days and drives for 1105 miles. What is her total bill?\$821.00
7. In October Mr. Gordon's shopping bill was \$490.00. The next month his bill increased by 2%. How much was his shopping bill in November?\$499.80
8. The Value Added Tax (VAT) on a telephone bill is 15%. Sam's telephone calls for the month of May amount to \$150.00. Calculate the total cost of Sam's telephone bill for May.\$172.50
9. By paying cash for a washing machine ,Karl saves \$1225.00. The selling price was marked at \$8654.00. How much did she pay for the machine?\$7429.00
10. A customer gets \$26.00 discount by paying cash for a pot. The customer pays \$130.00 for the pot. Calculate the percentage discount.20 %
11. A grocer buys a box of 50 mangoes for \$30.00. He sells each mango for \$0.90. Calculate his percentage profit.50 %
12. A retailer buys 20 mirrors at \$5.00 each. Five of the mirrors are damaged and thrown away. The others are sold at \$6.00 each. Calculate the loss that was made.\$10.00
13. The cost price of a bicycle is \$360.00. A 20% profit is made on the bicycle. Calculate the selling price of the bicycle. \$432.00
14. A chair is priced at \$400.00. A sales tax of 10 % is charged on the chair. How much does a buyer pay for the chair?\$440.00
15. A watch has the marked price of \$460.00, which already includes tax. If the sales tax charged is \$60, calculate the percentage sales tax. 15%

### Conscious Consumer: QR Challenge

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