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QR Challenge: Senior maths treasure hunt

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. Calculate 1 2/5 x 1 1/328/15
2. Express in completed square form x^2 - 6x + 4(x-3)^2 - 5
3. Calculate the height of the triangle (2.d.p)10.39cm
4. Jude and Jake share some prize money in the ratio 3:7. If Jake gets £28 more than Jude, how much money does Jude get?£21
5. Simplify (2y^4)^24y^8
6. The volume of a cuboid is 60 cubic centimetres. Each of the values, in centimetres, of its length, width and height is an integer greater than one. What is the minimum possible surface area of the cuboid, in square centimetres?47
7. Calculate the equation of the line passing through the points (-3,2) and (-1,0)y = 4x + 14
8. Calculate the shaded area correct to 2 decimal places. The circles are identical with radius 2.5cm149.74cm^2
9. What is the mean of 1/2, 1/3, 1/4, and 1/6?5/16
10. A ream of paper (500 sheets) is 5.4cm thick. What is the thickness of a single sheet, correct to one significant figure?0.01cm
11. Calculate the perimeter correct to 1 decimal place.42.6cm
12. Jasmine spends exactly £120 on three types of plants: poisoned ivy, deadly nightshade and triffids. Poisoned ivy plants cost £2 each, deadly nightshade plants cost £9 each and triffids £12 each. She buys twenty plants in total, including at least one of each type. How many triffids did she buy?8
13. “80% of the pupils asked preferred purple blazers, so purple blazers it is!” announced the Head triumphantly – conveniently forgetting to mention that 80% of the school had not even been asked. What percentage of pupils had actually told the Head that they preferred purple?16%
14. What is the largest prime number that divides exactly into the number equal to 2 + 3 + 5 x 7?7
15. My bargain settee cost me £240 in a sale offering 25% reductions on all items. How much did I save?£80
16. Four wiggles are the same as three woggles; two woggles are the same as five waggles, and six waggles are the same as one wuggle. Which is smallest?Waggles

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_1_2/5_x_1_1/3

Question 1 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Express_in_completed_square_form_x^2_-_6x_+_4

Question 2 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_height_of_the_triangle_(2.d.p)

Question 3 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Jude_and_Jake_share_some_prize_money_in_the_ratio_3:7._If_Jake_gets_£28_more_than_Jude,_how_much_money_does_Jude_get?

Question 4 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Simplify_(2y^4)^2

Question 5 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_volume_of_a_cuboid_is_60_cubic_centimetres._Each_of_the_values,_in_centimetres,_of_its_length,_width_and_height_is_an_integer_greater_than_one._What_is_the_minimum_possible_surface_area_of_the_cuboid,_in_square_centimetres?

Question 6 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_equation_of_the_line_passing_through_the_points_(-3,2)_and_(-1,0)

Question 7 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_shaded_area_correct_to_2_decimal_places._The_circles_are_identical_with_radius_2.5cm

Question 8 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_mean_of_1/2,_1/3,_1/4,_and_1/6?

Question 9 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_ream_of_paper_(500_sheets)_is_5.4cm_thick._What_is_the_thickness_of_a_single_sheet,_correct_to_one_significant_figure?

Question 10 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Calculate_the_perimeter_correct_to_1_decimal_place.

Question 11 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Jasmine_spends_exactly_£120_on_three_types_of_plants:_poisoned_ivy,_deadly_nightshade_and_triffids._Poisoned_ivy_plants_cost_£2_each,_deadly_nightshade_plants_cost_£9_each_and_triffids_£12_each._She_buys_twenty_plants_in_total,_including_at_least_one_of_each_type._How_many_triffids_did_she_buy?

Question 12 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=“80%_of_the_pupils_asked_preferred_purple_blazers,_so_purple_blazers_it_is!”_announced_the_Head_triumphantly_–_conveniently_forgetting_to_mention_that_80%_of_the_school_had_not_even_been_asked._What_percentage_of_pupils_had_actually_told_the_Head_that_they_preferred_purple?

Question 13 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_largest_prime_number_that_divides_exactly_into_the_number_equal_to_2_+_3_+_5_x_7?

Question 14 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=My_bargain_settee_cost_me_£240_in_a_sale_offering_25%_reductions_on_all_items._How_much_did_I_save?

Question 15 (of 16)

 


Senior maths treasure hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Four_wiggles_are_the_same_as_three_woggles;_two_woggles_are_the_same_as_five_waggles,_and_six_waggles_are_the_same_as_one_wuggle._Which_is_smallest?

Question 16 (of 16)