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# Teacher Notes

## 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

• 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.

## 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.

### Questions / Answers (teacher reference)

 Question Answer 1. Solve the math equation: In 161, which digit is in the tens column? 6 2. Solve the math equation: In 31, which digit is in the ones column? 1 3. Solve the math equation: In 79, which digit is in the ones column? 9 4. Solve the math equation: In 826, which digit is in the hundreds column? 8 5. Solve the math equation: In 658, which digit is in the tens column? 5 6. Solve the math equation: In 589, which digit is in the ones column? 9 7. Solve the math equation: In 437, which digit is in the hundreds column? 4 8. Solve the math equation: In 365, which digit is in the tens column? 6 9. Solve the math equation: In 713, which digit is in the ones place? 3 10. Solve the math equation: In 942, which digit is in the tens column? 4 11. Solve the math equation: In 274, which digit is in the hundreds column? 2 12. Place the numbers under the correct Place Value Column Chart provided 459 = 4 in hundreds, 5 in tens, 9 in ones 13. Place the numbers under the correct Place Value Column Chart provided 360 = 3 in hundreds, 6 in tens, 0 in ones 14. Place the numbers under the correct Place Value Column Chart provided 233= 2 in hundreds, 3 in tens, 3 in ones 15. Place the numbers under the correct Place Value Column Chart provided 649= 6 in hundreds, 4 in tens, 9 in ones 16. Place the numbers under the correct Place Value Column Chart provided 172= 1 in hundreds, 7 in tens, 2 in ones 17. Place the numbers under the correct Place Value Column Chart provided 498= 4 in hundreds, 9 in tens, 8 in ones 18. Answer the following addition question: 52+8= 60 19. Answer the following addition question: 36+6= 42 20. Answer the following addition question: 63+7= 70 21. Answer the following addition question: 15+8= 23 22. Answer the following addition question: 6+6= 12 23. Answer the following subtraction question: 71-2= 69 24. Answer the following subtraction question: 41-5= 36 25. Answer the following subtraction question: 30-4= 26 26. Answer the following subtraction question: 80-5= 75 27. Answer the following subtraction question: 34-3= 31 28. Draw the coins on a piece of paper, then add the total amount: 2 toonies, 1 dime, 5 nickels = \$4.25 29. Draw the coins on a piece of paper, then add the total amount: 3 toonies, 2 quarters, 2 nickels = \$6.60 30. Draw the coins on a piece of paper, then add the total amount: 2 toonies, 2 loonies, 1 quarter, 1 dime, 2 nickels = \$6.45 31. Draw the coins on a piece of paper, then add the total amount: 2 toonies, 3 loonies, 1 quarter, 1 dime = \$7.35 32. Draw the coins on a piece of paper, then add the total amount: 1 loonie, 4 quarters, 1 dime, 2 nickels = \$2.20 33. Using the table provided, solve the question by drawing the needed coins and any other strategy your group used to get your answer. Jackie wants to buy an ice cream cone. How much will she have to pay? \$1.90 34. Using the table provided, solve the question by drawing the needed coins and any other strategy your group used to get your answer. Sharon wants to buy an ice cream cone and hamburger. How much will she have to pay? \$4.00 35. Using the table provided, solve the question by drawing the needed coins and any other strategy your group used to get your answer. What is the total cost of a milkshake and taco? \$4.70 36. Using the table provided, solve the question by drawing the needed coins and any other strategy your group used to get your answer. What is the total cost of a hot dog and order of fries? \$1.90 37. Identify the number pattern and fill in the missing numbers. 22, 20, 18, 16, 14, 12, 10, 8, 6, 4 38. Identify the number pattern and fill in the missing numbers. 14, 16, 18, 20, 22, 24, 26, 28, 30, 32 39. Identify the number pattern and fill in the missing numbers. 12, 15, 18, 21, 24, 27, 30, 33, 36, 39 40. Identify the number pattern and fill in the missing numbers. 62, 64, 66, 68, 70, 72, 74, 76, 78, 80 41. Identify the number pattern and fill in the missing numbers. 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 42. Identify the number pattern and fill in the missing numbers. 50, 45, 40, 35, 30, 25, 20, 15, 10, 5 43. Complete the pattern sequence: Star, circle, star, circle, star, circle, star, circle, star, circle 44. Complete the pattern sequence: Blue circle, red square, blue circle, red square, blue circle, red square, blue circle, red square, blue circle, red square 45. Complete the pattern sequence: Diamond, square, circle, diamond, square, circle, diamond, square, circle, diamond 46. Complete the pattern sequence: Heart, rectangle, heart, rectangle, heart, rectangle, heart, rectangle, heart, rectangle 47. Complete the pattern sequence: Yellow diamond, blue star, pink square, yellow diamond, blue star, pink square, yellow diamond, blue star, pink square

### Math Scavenger Hunt: QR Challenge

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