QR Challenge: Algebra Builder #17
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. -6n - 3m + 5n | -1n - 32m
|
2. 4k - 5m - 32k + 5k | -23k - 5m
| 3. -6 - (18 - 12) | -12
| 4. 5 - (24 - 12) | -7
| 5. 1k + 4 = 5k - 3 | k = 7/4
| 6. -6(3p - 3) = 7 + 5p | p = 11/23
| 7. 2(12) + 10 + 9 - 6 | 37
| 8. 9 + 6 - 3 + 4(12) | 60
| 9. Make a table of values for the function y = -9x - 9, use (-2, -1, 0, 1, 2) | see key
| 10. name the domains for #9 | -2,-1,0,1,2
| 11. name the ranges for #9 | 9,0,-9,-18,-27
| 12. is #9 a function and how did you know? | yes, because none of the domains repeat
| 13. A couch, a love seat and a chair cost $1565. The couch costs twice as much as the chair, and the love seat costs $400 more than the coach.How much is the couch? | $233
| 14. How much is the love seat? | $866
| 15. How much is the chair? | $233
| 16. How much is the couch? | $466
| 17. Make a table for y = 4x, when the domain is (-2,-1,0,1,2) | see key
| 18. Make a graph for #16 | see graph
| 19. Name the domains for #16 | -2,-1,0,1,2
| 20. Name the ranges for #16 | -8,-4,0,4,8
| 21. What is the y-intercept for #16? | 0,0
| 22. What is the slope for #16? | 4
| 23. What kind of slope is #16? | positive
| 24. simplify 4 - 6x -3(2x + 5x) | 4 - 27x
| 25. simplify -6p - 4(2p + 5) | -14p - 20 |
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=-6n_-_3m_+_5n
Question 1 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=4k_-_5m_-_32k_+_5k
Question 2 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=-6_-_(18_-_12)
Question 3 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=5_-_(24_-_12)
Question 4 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=1k_+_4_=_5k_-_3
Question 5 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=-6(3p_-_3)_=_7_+_5p
Question 6 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=2(12)_+_10_+_9_-_6
Question 7 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=9_+_6_-_3_+_4(12)
Question 8 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=Make_a_table_of_values_for_the_function_y_=_-9x_-_9,_use_(-2,_-1,_0,_1,_2)
Question 9 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=name_the_domains_for_9
Question 10 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=name_the_ranges_for_9
Question 11 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=is_9_a_function_and_how_did_you_know?
Question 12 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=A_couch,_a_love_seat_and_a_chair_cost_$1565.__The_couch_costs_twice_as_much_as_the_chair,_and_the_love_seat_costs_$400_more_than_the_coach.How_much_is_the_couch?
Question 13 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=How_much_is_the_love_seat?
Question 14 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=How_much_is_the_chair?
Question 15 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=How_much_is_the_couch?
Question 16 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=Make_a_table_for_y_=_4x,_when_the_domain_is_(-2,-1,0,1,2)
Question 17 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=Make_a_graph_for_16
Question 18 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=Name_the_domains_for_16
Question 19 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=Name_the_ranges_for_16
Question 20 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=What_is_the_y-intercept_for_16?
Question 21 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=What_is_the_slope_for_16?
Question 22 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=What_kind_of_slope_is_16?
Question 23 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=simplify_4_-_6x_-3(2x_+_5x)
Question 24 (of 25)
Algebra Builder #17: QR Challenge
https://www.classtools.net/QR/decode.php?text=simplify_-6p_-_4(2p_+_5)
Question 25 (of 25)