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
4. Cut them out and place them around your class / school.
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!
4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.
Question | Answer |
1. Poco started the day with an irrigation pipe 120 feet long. He used the equation L = 15s + 120 to determine the total length of the pipe as new sections of pipe, s, were welded on to the end. What is the slope of the line? What does the slope represent in the context of the problem? | 15 cost per section Farmer Michael had a well on his property 200 feet deep. When the well went dry, he hired a company to drill the well deeper. He used the equation d = -75t – 200 to find the depth of the well, d, using the number of days the company drilled, t. What is the slope of the line? What does the slope represent in the context of the problem2? | 2. | 3. It costs Craven Motors $500,000 to outfit their new car line. The company used the equation p = 2500c – 500,000 to determine the amount of profit, p, earned from the sale of cars, c. What is the slope of the line? What does the slope represent in the context of the problem? 3 | 2500 number of car | 4. | 5. Abram had $125 in his savings account to buy a used car. He used the equation A = 50w + 125 to determine the amount in his savings, A, after depositing the same amount in his account every week, w. What is the slope of the line? What does the slope represent in the context of the problem? 4 | 50 number of weeks | 6. | 7. Ray the plumber charges $25 for a service call. He use the equation C = 50h + 25 to determine the charge of his services, C, after working h hours. What is the slope of the line? What does the slope represent in the context of the problem? 5 | 50 number of hours | 8. | 9. Saul the plumber charges $65 per hour to fix your plumbing. He uses the equation C = 65h + 100 to determine the charge of his services, C, after working h hours. What is the y-intercept? What does it represent in the context of the problem? 6 | 100 service charge | 10. | 11. Erica is running the freshman class fundraiser. They are selling key chains as a fundraiser. The amount of money they make is computed using the function y = 2x – 100, where x represents the number of key chains sold. What does the number 100 mean in the context of this problem? 7 | Cost of the key chains. | 12. | 13. Khaleef’s parents are saving to buy a new car for his 16th birthday. The function y = 125x + 3200 represents the relationship between the number of months his parents have been saving and the amount in their account. What does the number 3200 represent in the context of the problem? 8 | the money in the bank right now | 14. | 15. Olivia lights a candle in her kitchen. The height of the candle is represented by the equation y = -½ x + 6, where x is the time in hours the candle has been burning and y is the height of the candle in inches. What was the height of the candle before Laura lit it? 9 | 6 inches | 16. | 17. Azusena has been paying her credit card bill since January 1st. The equation B = -100m + 675 represents the relationship between the time she has been paying, m, and the amount of her credit card bill, B. How much money did Elizabeth owe at the beginning of the year? 10 | 675 | 18. | 19. Daisy joins a CD club. She pays $15 for the membership and $6 for each CD that she buys. Write an equation in slope-intercept form that models the relationship between the cost Daisy pays, y, and the number of CDs Daisy buys, x. 11 | y = 6x + 15 | 20. | 21. Jessica has $1500 in her bank account. She spends $150 each week. Write an equation that represents the relationship between the amount in Jessica’s bank account, A, and the number of weeks she has been spending, w. 12 | y = 1500 - 150x | 22. | 23. Trey is draining his pool for the winter. There are 240 gallons in the pool and it is decreasing at a rate of 20 gallons per hour. Write an equation to represent the relationship between the amount of water in the pool, y, and the number of hours the pool has been draining, x. 13 | y = 240 - 20x | 24. | 25. Airport DVD rentals is offering a new special for the busy holiday travel season. You can rent a portable DVD player and DVDs to take on your flight. 1 DVDs Rented for 19 Total Cost 4 DVDs Rented for 31 Total Cost Write an equation to represent the relationship between the number of DVDs rented, d, and the total cost, c.14 | y = 4x + 15 | 26. | 27. Rachel is planning Thanksgiving dinner. The number of pounds of turkey she will buy depends on the number of people she invites to dinner. 12 people invited need 9 pounds of turkey. 20 people invited need 15 pounds of Turkey. Write an equation to represent the relationship between the number of people invited, x, and the number of pounds of turkey needed, y. 15 | y - 3/4x | 28. | 29. Jaden is training for a marathon. The equation y = 3x + 5.5 represents the number of miles Jaden can run over time, where y is the number of miles Jaden runs and x is the number of weeks Jaden has been training. How long will it take Jaden to be ready to run the entire marathon of 26.5 miles? 16 | 7 weeks Na’Kavien begins working at Hot Topic. He will be paid a daily amount plus a commission of his total sales. The equation y = .10x + 15 represents the amount Na’Kavien will make based on his total sales, where y is the amount of money Na’Kavien makes in one day and x is his total sales. How much will Na’Kavien make if he sells $650?17 | 30. | 31. Anthony works at the T-shirt Shack selling tees. The equation y = 15x – 520 represents the profit that the T-shirt Shack makes for each t-shirt sold, where y is the total profit and x is the number of t-shirts sold. How many t-shirts does the T-shirt Shack need to sell to make a profit of $140? 18 | 44 | 32. | 33. Tamara paints faces at kids’ birthday parties to earn extra money. The equation M = 2.50f + 12 represents the relationship between the money she makes, M, and the number of faces she paints, f. Tamara wants to buy a new pair of Uggs that cost $119.50. How many faces does she need to paint? 19 | 43 | 34. | 35. William is learning to scuba dive. The equation D = 20L + 15 represents the depth he can dive in feet, D, based on the number of lessons he has had, L. How deep can William dive after he takes 13 lessons? 20 | 275 |
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