QR Challenge: Multi-Step Equations
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. question 16x-15-9x=13 | answer x=4
|
2. question2 15m+4-9m=-32 | answer2 m=-6
| 3. question3 3y-9-8y=11 | answer3 y=-4
| 4. question4 9+4(x+1)=25 | answer4 x=3
| 5. question5 7(w-5)+12=5 | answer5 w=4
| 6. question6 10a+5(a-3)=15 | answer6 a=2
| 7. question7 19a-3(a-6)=66 | answer7 a=3
| 8. question8 1/4(x-8)=7 | answer8 x=36
| 9. question9 1/3(y+9)=-12 | answer9 y=-45
| 10. question10 3/4(n+3)=9 | answer10 n=9
| 11. question11 15x-8=14x+13 | answer11 x=21
| 12. question12 9n-7=5n+5 | answer12 n=3
| 13. question13 -7a+9=3a+49 | answer13 a=-4
| 14. question14 4(w+3)=w-15 | answer14 w=-9
| 15. question15 8(y-5)=6y-18 | answer15 y=11
| 16. question16 14m-10=3(4+m) | answer16 m=2
| 17. question17 7+x=1/2(4x-2) | answer17 x=8
| 18. question18 8y+11-3y=2y+w | answer18 y=-3
| 19. question19 10w-6=4w-15-3w | answer19 w=-1
| 20. question20 16y-4=4(2y-3) | answer20 y=-1
| 21. question21 You are driving to a vacation spot that is 1500 miles away. Including rest stops, it takes you 42 hours to get to the vacation spot. You estimate that you drove at an average speed of 50 miles per hour. How many hours were you NOT driving? | answer21 12 hours
| 22. question22 You helped a friend move a short distance recently. The friend rented a truck for $15 an hour and rented a dolly for $5. Your friend paid a total of $80 for the rental. How long did your friend rent the truck for? | answer22 5 hours
| 23. question23 A fitness center offers yoga classes for $10 per class and sells yoga mats for $19.95. A person paid a total of $139.95 to the fitness center for yoga classes and a mat. Find the number of yoga classes the person took. | answer23 12 classes
| 24. question24 Your school has a $1200 grant to buy books and magazine subscriptions for the school library. The average cost of a magazine subscription is $30. Your school decides to spend $870 on books and the remaining amount on magazine subscriptions. How many magazine subscriptions can the school buy? | answer24 11 subscriptions
| 25. question25 The membership fee for joining a gardening association is $24 per year. A local botanical garden charges members of the gardening association $3 admission to the garden. Nonmembers of the association are charged $6. After how many visits to the garden is the total cost for members, including the membership fee, the same as the total cost for nonmembers? | answer25 8 visits |
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question_16x-15-9x=13
Question 1 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question2_15m+4-9m=-32
Question 2 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question3_3y-9-8y=11
Question 3 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question4_9+4(x+1)=25
Question 4 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question5_7(w-5)+12=5
Question 5 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question6_10a+5(a-3)=15
Question 6 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question7_19a-3(a-6)=66
Question 7 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question8_1/4(x-8)=7
Question 8 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question9_1/3(y+9)=-12
Question 9 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question10_3/4(n+3)=9
Question 10 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question11_15x-8=14x+13
Question 11 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question12_9n-7=5n+5
Question 12 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question13_-7a+9=3a+49
Question 13 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question14_4(w+3)=w-15
Question 14 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question15_8(y-5)=6y-18
Question 15 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question16_14m-10=3(4+m)
Question 16 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question17_7+x=1/2(4x-2)
Question 17 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question18_8y+11-3y=2y+w
Question 18 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question19_10w-6=4w-15-3w
Question 19 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question20_16y-4=4(2y-3)
Question 20 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question21_You_are_driving_to_a_vacation_spot_that_is_1500_miles_away._Including_rest_stops,_it_takes_you_42_hours_to_get_to_the_vacation_spot.__You_estimate_that_you_drove_at_an_average_speed_of_50_miles_per_hour._How_many_hours_were_you_NOT_driving?
Question 21 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question22_You_helped_a_friend_move_a_short_distance_recently._The_friend_rented_a_truck_for_$15_an_hour_and_rented_a_dolly_for_$5._Your_friend_paid_a_total_of_$80_for_the_rental._How_long_did_your_friend_rent_the_truck_for?
Question 22 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question23_A_fitness_center_offers_yoga_classes_for_$10_per_class_and_sells_yoga_mats_for_$19.95._A_person_paid_a_total_of_$139.95_to_the_fitness_center_for_yoga_classes_and_a_mat._Find_the_number_of_yoga_classes_the_person_took.
Question 23 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question24_Your_school_has_a_$1200_grant_to_buy_books_and_magazine_subscriptions_for_the_school_library._The_average_cost_of_a_magazine_subscription_is_$30._Your_school_decides_to_spend_$870_on_books_and_the_remaining_amount_on_magazine_subscriptions._How_many_magazine_subscriptions_can_the_school_buy?
Question 24 (of 25)
Multi-Step Equations : QR Challenge
https://www.classtools.net/QR/decode.php?text=question25_The_membership_fee_for_joining_a_gardening_association_is_$24_per_year._A_local_botanical_garden_charges_members_of_the_gardening_association_$3_admission_to_the_garden._Nonmembers_of_the_association_are_charged_$6._After_how_many_visits_to_the_garden_is_the_total_cost_for_members,_including_the_membership_fee,_the_same_as_the_total_cost_for_nonmembers?
Question 25 (of 25)
