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QR Challenge: Lateral Thinking

Created using the ClassTools QR Treasure Hunt Generator

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. If you have two coins totalling 11p, and one of the coins is not a penny, what are the two coins?10p and a penny. It is the 10 pence which is not a penny.
2. 2. If you were alone in a deserted house at night, and there was an oil lamp, a candle and firewood and you only have one match, which would you light first?The match.
3. 3. What can you put in a wooden box that would make it lighter? The more of them you put in the lighter it becomes, yet the box stays empty.A hole.
4. 4. To the nearest cubic centimetre, how much soil is there in a 3m x 2m x 2m hole?There would be no soil in the hole.
5. 5. Is it legal for a man to marry his widow's sister?No because that would mean the man is dead.
6. 6. If you drove a coach leaving Canterbury with 35 passengers, dropped off 6 and picked up 2 at Faversham, picked up 9 more at Sittingbourne, dropped off 3 at Chatham, and then drove on to arrive in London 40 minutes later, what colour are the driver's eyes? Whatever colour the reader of the questions eyes are.
7. 7. A window cleaner is cleaning the windows on the 25th floor of a skyscraper, when he slips and falls. He is not wearing a safety harness and nothing slows his fall, yet he suffered no injuries. Explain.He is the windows on the inside of the building.
8. 8. A farmer has 15 cows, all but 8 die. How many does he have left?8
9. 9. John's mother has 3 children, one is named April, one is named May. What is the third one named?John

 



Lateral Thinking: QR Challenge

https://www.classtools.net/QR/decode.php?text=1._If_you_have_two_coins_totalling_11p,_and_one_of_the_coins_is_not_a_penny,_what_are_the_two_coins?

Question 1 (of 9)

 



Lateral Thinking: QR Challenge

https://www.classtools.net/QR/decode.php?text=2._If_you_were_alone_in_a_deserted_house_at_night,_and_there_was_an_oil_lamp,_a_candle_and_firewood_and_you_only_have_one_match,_which_would_you_light_first?

Question 2 (of 9)

 



Lateral Thinking: QR Challenge

https://www.classtools.net/QR/decode.php?text=3._What_can_you_put_in_a_wooden_box_that_would_make_it_lighter?_The_more_of_them_you_put_in_the_lighter_it_becomes,_yet_the_box_stays_empty.

Question 3 (of 9)

 



Lateral Thinking: QR Challenge

https://www.classtools.net/QR/decode.php?text=4._To_the_nearest_cubic_centimetre,_how_much_soil_is_there_in_a_3m_x_2m_x_2m_hole?

Question 4 (of 9)

 



Lateral Thinking: QR Challenge

https://www.classtools.net/QR/decode.php?text=5._Is_it_legal_for_a_man_to_marry_his_widow's_sister?

Question 5 (of 9)

 



Lateral Thinking: QR Challenge

https://www.classtools.net/QR/decode.php?text=6._If_you_drove_a_coach_leaving_Canterbury_with_35_passengers,_dropped_off_6_and_picked_up_2_at_Faversham,_picked_up_9_more_at_Sittingbourne,_dropped_off_3_at_Chatham,_and_then_drove_on_to_arrive_in_London_40_minutes_later,_what_colour_are_the_driver's_eyes?

Question 6 (of 9)

 



Lateral Thinking: QR Challenge

https://www.classtools.net/QR/decode.php?text=7._A_window_cleaner_is_cleaning_the_windows_on_the_25th_floor_of_a_skyscraper,_when_he_slips_and_falls._He_is_not_wearing_a_safety_harness_and_nothing_slows_his_fall,_yet_he_suffered_no_injuries._Explain.

Question 7 (of 9)

 



Lateral Thinking: QR Challenge

https://www.classtools.net/QR/decode.php?text=8._A_farmer_has_15_cows,_all_but_8_die._How_many_does_he_have_left?

Question 8 (of 9)

 



Lateral Thinking: QR Challenge

https://www.classtools.net/QR/decode.php?text=9._John's_mother_has_3_children,_one_is_named_April,_one_is_named_May._What_is_the_third_one_named?

Question 9 (of 9)