QR Challenge: Math and Science Crossover - Part 2
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 bicycle helmet was discounted 30%. If the regular price of the helmet is $80, what is the new price? | $56
|
2. ______% of 35= 15 | 42.9
| 3. 20% of 15 =_____ | 3
| 4. 65% of ______ = 80 | 123.1
| 5. 14(-2)= | -28
| 6. (-2)(-13)(-1)= | -26
| 7. 2x+4=28 | x=12
| 8. 3n-7=29 | n=12
| 9. -3+(-2)(-1)= | -1
| 10. 41-(-3= | 44
| 11. 6+(-12)= | -6
| 12. .25 x 36.3= | 9.075
| 13. 12.4 x 3.1= | 38.44
| 14. 36km = _____ m | 36,000
| 15. 9.21cm = ______ mm | 92.1
| 16. 7.1cm = ________ km | .000071
| 17. 256mm = _______ cm | 25.6
| 18. 5/7 x 7/8 = | 5/8
| 19. 6/5 x 11/15= | 22/25
| 20. 54 C in a D with the J (deal them) | 54 cards in the deck with the jokers
| 21. 7 D in a W (52 in a year) | 7 days in a week
| 22. 9 L of a C (meow) | 9 lives of a cat
| 23. 50 S on the A F (Oh say can you see) | 50 stars on the American flag |
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=A_bicycle_helmet_was_discounted_30%.__If_the_regular_price_of_the_helmet_is_$80,_what_is_the_new_price?
Question 1 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=______%_of_35=_15
Question 2 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=20%_of_15_=_____
Question 3 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=65%_of________=_80
Question 4 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=14(-2)=
Question 5 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=(-2)(-13)(-1)=
Question 6 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=2x+4=28
Question 7 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=3n-7=29
Question 8 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=-3+(-2)(-1)=
Question 9 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=41-(-3=
Question 10 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=6+(-12)=
Question 11 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=.25_x_36.3=
Question 12 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=12.4_x_3.1=
Question 13 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=36km_=_______m
Question 14 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=9.21cm_=________mm
Question 15 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=7.1cm_=__________km
Question 16 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=256mm_=_________cm
Question 17 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=5/7_x_7/8_=
Question 18 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=6/5_x_11/15=
Question 19 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=54_C_in_a_D_with_the_J_(deal_them)
Question 20 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=7_D_in_a_W_(52_in_a_year)
Question 21 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=9_L_of_a_C_(meow)
Question 22 (of 23)
Math and Science Crossover - Part 2 : QR Challenge
https://www.classtools.net/QR/decode.php?text=50_S_on_the_A_F_(Oh_say_can_you_see)
Question 23 (of 23)