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QR Challenge: Red Tuesday Problem Solving

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. A theatre sells 467 tickets for a matinee performance of A Christmas Carol. A school group then books a further 118 tickets. If the theatre holds 1060 people, how many places are left unsold? 475
2. 2. A car salesroom has a sales target of £150,000. They sell 12 cars for £9,800 each. How many more cars do they need to sell to meet their target? 4
3. 3. Ross buys a pack of 8 kiwi fruit for £1.92. Individual kiwi fruit cost 30p each. How much cheaper is each kiwi fruit by buying in a pack? 48p
4. 4. What is the difference between the product of 19 and 3.6, and the sum of 2.87 and 3.5? 0.47
5. 5. Mr Taylor gives each child in his class 18 stickers during January. If there are 29 children in Mr Taylor’s class, and Mr T had a pack of 1000 stickers to start with, how many stickers has Mr Taylor left at the end of January? 478
6. 6. Daisy buys two magazines for £1.29 each and spends £8.95 on a CD. If she had £12.50 to start with, how much does she have left? £9.70
7. 7. Pencils cost £1.50 for a pack of 12. In one year, the school has to buy 1440 pencils. How much do they cost altogether? £180
8. 8. Mr Taylor shows limited willpower and eats 17 biscuits every day in 2014, except for Christmas Day when he eats 28. How many biscuits will Mr Taylor have eaten by the end of the year? 6216
9. 9. Being healthy, Miss Anderson buys a 2.5 litre bottle of olive oil. She uses 567ml in one week, then 0.65 litres the next week. How much does she have left in the bottle by the end of the second week? 1283

 


Red Tuesday Problem Solving: QR Challenge

https://www.classtools.net/QR/decode.php?text=1. A_theatre_sells_467_tickets_for_a_matinee_performance_of_A_Christmas_Carol._A_school_group_then_books_a_further_118_tickets._If_the_theatre_holds_1060_people,_how_many_places_are_left_unsold?

Question 1 (of 9)

 


Red Tuesday Problem Solving: QR Challenge

https://www.classtools.net/QR/decode.php?text=2. A_car_salesroom_has_a_sales_target_of_£150,000._They_sell_12_cars_for_£9,800_each._How_many_more_cars_do_they_need_to_sell_to_meet_their_target?

Question 2 (of 9)

 


Red Tuesday Problem Solving: QR Challenge

https://www.classtools.net/QR/decode.php?text=3. Ross_buys_a_pack_of_8_kiwi_fruit_for_£1.92._Individual_kiwi_fruit_cost_30p_each._How_much_cheaper_is_each_kiwi_fruit_by_buying_in_a_pack?

Question 3 (of 9)

 


Red Tuesday Problem Solving: QR Challenge

https://www.classtools.net/QR/decode.php?text=4. What_is_the_difference_between_the_product_of_19_and_3.6,_and_the_sum_of_2.87_and_3.5?

Question 4 (of 9)

 


Red Tuesday Problem Solving: QR Challenge

https://www.classtools.net/QR/decode.php?text=5. Mr_Taylor_gives_each_child_in_his_class_18_stickers_during_January._If_there_are_29_children_in_Mr_Taylor’s_class,_and_Mr_T_had_a_pack_of_1000_stickers_to_start_with,_how_many_stickers_has_Mr_Taylor_left_at_the_end_of_January?

Question 5 (of 9)

 


Red Tuesday Problem Solving: QR Challenge

https://www.classtools.net/QR/decode.php?text=6. Daisy_buys_two_magazines_for_£1.29_each_and_spends_£8.95_on_a_CD._If_she_had_£12.50_to_start_with,_how_much_does_she_have_left?

Question 6 (of 9)

 


Red Tuesday Problem Solving: QR Challenge

https://www.classtools.net/QR/decode.php?text=7. Pencils_cost_£1.50_for_a_pack_of_12._In_one_year,_the_school_has_to_buy_1440_pencils._How_much_do_they_cost_altogether?

Question 7 (of 9)

 


Red Tuesday Problem Solving: QR Challenge

https://www.classtools.net/QR/decode.php?text=8. Mr_Taylor_shows_limited_willpower_and_eats_17_biscuits_every_day_in_2014,_except_for_Christmas_Day_when_he_eats_28._How_many_biscuits_will_Mr_Taylor_have_eaten_by_the_end_of_the_year?

Question 8 (of 9)

 


Red Tuesday Problem Solving: QR Challenge

https://www.classtools.net/QR/decode.php?text=9. Being_healthy,_Miss_Anderson_buys_a_2.5_litre_bottle_of_olive_oil._She_uses_567ml_in_one_week,_then_0.65_litres_the_next_week._How_much_does_she_have_left_in_the_bottle_by_the_end_of_the_second_week?

Question 9 (of 9)