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QR Challenge: Y4 Perimeter and Number bonds

Created using the ClassTools QR Treasure Hunt Generator

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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

3. Print out the QR codes.

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. 1. ? + 87 = 100 13
2. 2. 100 - ? = 40 60
3. 3. 67 + ? =100 33
4. 4. The perimeter of a rectangle is 140cm. What could its sides be? e.g. only 50 + 50 + 20 + 20
5. 5. A square has a perimeter of 160cm. What do its sides measure? 40cm
6. 6. A length of a square meaures 60cm. What is the perimeter of the square? 240cm
7. 7. Draw a rectangle. One of its sides measures 40cm. Another of its sides measures 90cm. What is the perimeter of the rectangle? 260cm
8. 8. A book has the following measurements : Length 25cm and its width 10cm. What is the perimeter of the book?70cm
9. 9. 32 + 40 + ? = 10028
10. 10. 6 + 7 + 20 + ? = 10067
11. 11. A square has a perimeter of 200cm. What do its sides measure? 50cm
12. 12. Draw a rectangle. One of its sides measures 20cm. Another of its sides measures 1m. What is the perimeter of the rectangle? 240cm/2.40m
13. 13. A length of a square meaures 1.2m. What is the perimeter of the square? 4.8m/480cm
14. 14. A door has the following measurements : Length 250cm and its width 100cm. What is the perimeter of the door?700cm/7m
15. 15. The perimeter of a rectangle is 450cm. What could its sides be? e.g. only 200 + 200 + 25 + 25
16. 16. 100= 69 + ? 31
17. 17. 100= 76 + ? 24
18. 18. 100 - ? = 90 10
19. 19. A pencil case has the following measurements : Length 15cm and its width 5cm. What is the perimeter of the pencil case?40cm
20. 20. 10 + 40 + ? = 10050

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q1/20:

1. ? + 87 = 100 &choe=UTF-8

Question 1 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q2/20:

2. 100 - ? = 40&choe=UTF-8

Question 2 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q3/20:

3. 67 + ? =100&choe=UTF-8

Question 3 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q4/20:

4. The perimeter of a rectangle is 140cm. What could its sides be? &choe=UTF-8

Question 4 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q5/20:

5. A square has a perimeter of 160cm. What do its sides measure?&choe=UTF-8

Question 5 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q6/20:

6. A length of a square meaures 60cm. What is the perimeter of the square?&choe=UTF-8

Question 6 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q7/20:

7. Draw a rectangle. One of its sides measures 40cm. Another of its sides measures 90cm. What is the perimeter of the rectangle?&choe=UTF-8

Question 7 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q8/20:

8. A book has the following measurements : Length 25cm and its width 10cm. What is the perimeter of the book?&choe=UTF-8

Question 8 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q9/20:

9. 32 + 40 + ? = 100&choe=UTF-8

Question 9 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q10/20:

10. 6 + 7 + 20 + ? = 100&choe=UTF-8

Question 10 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q11/20:

11. A square has a perimeter of 200cm. What do its sides measure?&choe=UTF-8

Question 11 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q12/20:

12. Draw a rectangle. One of its sides measures 20cm. Another of its sides measures 1m. What is the perimeter of the rectangle?&choe=UTF-8

Question 12 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q13/20:

13. A length of a square meaures 1.2m. What is the perimeter of the square?&choe=UTF-8

Question 13 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q14/20:

14. A door has the following measurements : Length 250cm and its width 100cm. What is the perimeter of the door?&choe=UTF-8

Question 14 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q15/20:

15. The perimeter of a rectangle is 450cm. What could its sides be? &choe=UTF-8

Question 15 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q16/20:

16. 100= 69 + ? &choe=UTF-8

Question 16 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q17/20:

17. 100= 76 + ? &choe=UTF-8

Question 17 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q18/20:

18. 100 - ? = 90&choe=UTF-8

Question 18 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q19/20:

19. A pencil case has the following measurements : Length 15cm and its width 5cm. What is the perimeter of the pencil case?&choe=UTF-8

Question 19 (of 20)

 


Y4 Perimeter and Number bonds: QR Challenge

https://www.classtools.net/QR/decode.php?text=Y4 Perimeter and Number bonds
Q20/20:

20. 10 + 40 + ? = 100&choe=UTF-8

Question 20 (of 20)