Detailed Case Study Search the Archive Feedback

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

- Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
- Bring these devices into the lesson.

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. Jim spent 5/6 of an hour doing chores. He spent 2/5 of that time washing dishes. What fraction of an hour did he spend washing dishes? | 1/3 of an hour |

2. The geese are flying south for the winter. They fly 7 and 2/3 miles one day, 9 and 1/2 miles the next day, and 3 and 1/6 miles the third day. How many miles do they fly in all? | 20 1/3 miles |

3. A turtle travels 3/10 mile one day and 1 and 1/8 miles the next day. How much farther did the turtle travel on the second day than the first day? | 33/40 of a mile |

4. Yesterday, Gary's Snack Shack went through 1/8 of a bottle of ketchup. If they used 1/4 as much mustard as ketchup, how many bottles of mustard did they go through? | 1/32 of a bottle |

5. Cassie ate 1 3/5 slices of pizza for lunch and 2 2/7 slices for dinner.. How much pizza did Cassie each altogether? | 3 31/35 slices of pizza |

6. Solve: 3x = 42 | 14 |

7. Solve: x - 7.5 = 10.4 | 17.9 |

8. Solve: x/8 = 2.5 | 20 |

9. Solve: x + 8.2 = 15 | 6.8 |

10. Solve: 3x - 1 = 11 | 4 |

11. Simplify: 18 - 3 x 2 + 5 | 17 |

12. Simplify: 7x + 5y - x - 2y + 1 | 6x + 3y + 1 |

13. Simplify: 4(2x + 3) - 5 + y | 8x + y + 7 |

14. Simplify: 3(4x - 5) + 20 - x | 11x + 5 |

15. Simplify: 5x - 8 + 3 + 2x | 7x - 5 |

16. Julie was making cupcakes for her bakery. For every 2 cupcakes that she put chocolate frosting on, she put vanilla frosting on 3. If she put chocolate frosting on 30 cupcakes, how many did she put vanilla frosting on? | 45 cupcakes |

17. Julie was making cupcakes for her bakery. For every 2 cupcakes that she put chocolate frosting on, she put vanilla frosting on 3. If she made 30 cupcakes, how many did she put vanilla frosting on? | 18 cupcakes |

18. Julie was making cupcakes for her bakery. For every 2 cupcakes that she put chocolate frosting on, she put vanilla frosting on 3. If she put chocolate frosting on 30 cupcakes, how many cupcakes did she make in all? | 75 cupcakes |

19. The ratio of pencils sold to pens sold at a stationary store is 2 to 7. If they sell 18 pencils, how many pens will they sell? | 63 pens |

20. The ratio of cats to dogs at animal shelter is 4:5. If they have 20 dogs, how many animals do they have in all? | 36 animals |

21. To make Gatorade from powdered mix calls for 1 ounce powdered mix for every 6 ounces water. If Sarah uses 21 ounces of ingredients, how many ounces were water? | 18 ounces were water |

22. Challenge: 1 out of every 5 dogs at the animal shelter was given a bath yesterday. If 20 were not given baths, how many were given baths? | 5 dogs |

23. Challenge: 3 out of every 4 children in a class were boys. If there were 8 girls, how many boys were there? | 24 boys |

24. Challenge: 2 out of every 5 cookies in a box were broken. If there were 4 more that were not broken than broken, how many cookies were not broken? | 12 cookies |

25. Challenge: Casey got 1 out of every 6 questions on a test wrong. If he got 24 more right than wrong, how many did he miss? | 6 missed |

26. The width of a rectangle is 10x + 3. Its length is twice its width. Find the perimeter. | 60x + 18 |

27. What is 10% of 60? | 6 |

28. What is 40% of 80? | 32 |

29. What is 75% of 240? | 180 |

30. What is 80% of 160? | 128 |

31. What is 200% of 20? | 40 |

32. Evaluate 5x(4x - x) if x = 5. | 375 |

33. Evaluate 3x - 8 + 2x if x = 9. | 37 |

34. Evaluate 0.5x if x = 60. | 30 |

35. Evaluate 10 - x + 3x if x = 4. | 18 |

36. The two sides of a right triangle that make the right angle are 4 cm and 5 cm long. The other side of the triangle is 6.5 cm long. Find the area of the triangle. | 10 cm sq |

37. The two sides of a right triangle that make the right angle are 4 cm and 5 cm long. The other side of the triangle is 6.5 cm long. Find the perimeter of the triangle. | 15.5 cm |

38. A parallelogramâ€™s height is 6 inches. Its base is 10 inches, and the slanted sides are 8 inches. Find the perimeter. | 36 inches |

39. A parallelogramâ€™s height is 6 inches. Its base is 10 inches, and the slanted sides are 8 inches. Find the area. | 60 in sq |

40. Evaluate: 8 raised to the 5th power | 32,768 |

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