QR Challenge: Multiplying and dividing fractions
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.
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. A small water park has 24 employees. About 1/6 of them are males, how many male employees work at the water park. | 4 males
|
2. What multiple of 5 is closest to 56 | 55
| 3. 2/8 x 3/8 | 3/4
| 4. 6x2/3 | 4
| 5. Luke ate 1/2 of a pizza. Joe ate 2/3 the pizza.How much of the pizza did they eat? | 1/3
| 6. Bob has 3/8 of a pizza left from the other day. He ate 1/8 of the leftover for a snack. What fraction of the entire pizza did he eat. | 2/8
| 7. 5/9x6/10 simplify | 1/3
| 8. 4/7x4/5 | 16/35
| 9. 5 6/8 x 4 7/9 | 4 12/17
| 10. 5/8 x 3/8 | 1 7/8
| 11. 3/6 x 2/6 | 1
| 12. 8/9 x 3/9 | 24/81
| 13. Larrys porch measures 9 3/4 ft by 4 ft. What is the area of Larrys porch? | 39ft
| 14. 2/3 x 6/8 | 1/2
| 15. 3/6 x 2/3 | 1
| 16. 1/2 x 2/3 | 1/6
| 17. 3/8 x 4 | 1 1/2
| 18. 1/2 divided by 1/2 | 1
| 19. 1/8 x 3/8 | 3/64
| 20. 1/8 x 6/8 | 3/32
| 21. 1/3 divided by 13/9 | 3/13
| 22. 2/6 divided by 2/6 | 1/3
| 23. 1/4 x 6/7 | 3/14
| 24. 4 1/2 x2 5/6 | 3 1/4
| 25. A photograph is 5 1/3 inches wide. It is being enlarged to 3 times its original size. What is the width of the enlarged photograph | 16
| 26. 1/6x17 | 2 5/6
| 27. 2/3 divided by 10 | 1/15
| 28. 3/10'x 2 5/6 | 51/60
| 29. 3/5 x 5/6 | 1/2
| 30. 4/5 x 10 | 8
| 31. 2/3 x 4/5 | 8/15
| 32. 3/5x4 | 2 2/5. |
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=A_small_water_park_has_24_employees._About_1/6_of_them_are_males,_how_many_male_employees_work_at_the_water_park.
Question 1 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=What_multiple_of_5_is_closest_to_56
Question 2 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=2/8_x_3/8
Question 3 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=6x2/3
Question 4 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=Luke_ate_1/2_of_a_pizza._Joe_ate_2/3_the_pizza.How_much_of_the_pizza_did_they_eat?
Question 5 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=Bob_has_3/8_of_a_pizza_left_from_the_other_day._He_ate_1/8_of_the_leftover_for_a_snack._What_fraction_of_the_entire_pizza_did_he_eat.
Question 6 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=5/9x6/10_simplify
Question 7 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=4/7x4/5
Question 8 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=5_6/8_x_4_7/9
Question 9 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=5/8_x_3/8
Question 10 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=3/6_x_2/6
Question 11 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=8/9_x_3/9
Question 12 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=Larrys_porch__measures_9_3/4_ft_by_4_ft._What_is_the_area_of_Larrys_porch?
Question 13 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=2/3_x_6/8
Question 14 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=3/6_x_2/3
Question 15 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1/2_x_2/3
Question 16 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=3/8_x_4
Question 17 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1/2__divided_by_1/2
Question 18 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1/8_x_3/8
Question 19 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1/8_x_6/8
Question 20 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1/3_divided_by_13/9
Question 21 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=2/6_divided_by_2/6
Question 22 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1/4_x_6/7
Question 23 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=4_1/2_x2_5/6
Question 24 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=A_photograph_is_5_1/3_inches_wide._It_is_being_enlarged_to_3_times_its_original_size._What_is_the_width_of_the_enlarged_photograph
Question 25 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=1/6x17
Question 26 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=2/3_divided_by_10
Question 27 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=3/10'x_2_5/6
Question 28 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=3/5_x_5/6
Question 29 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=4/5_x_10
Question 30 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=2/3_x_4/5
Question 31 (of 32)
Multiplying and dividing fractions: QR Challenge
https://www.classtools.net/QR/decode.php?text=3/5x4
Question 32 (of 32)