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QR Challenge: Chemistry 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. In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course?24
2.
3.
4.
5.
6. Amy has to visit towns B and C in any order. The roads connecting these towns with her home are shown on the diagram. How many different routes can she take starting from A and returning to A, going through both B and C (but not more than once through each) and not travelling any road twice on the same trip?8
7.
8.
9. 3. Jo's collection contains US, Indian and British stamps. If the ratio of US to Indian stamps is 5 to 2 and the ratio of Indian to British stamps is 5 to 1, what is the ratio of US to British stamps?25:2
10. 4. A certain animal in the zoo has consumed 39 pounds of food in six days. If it continues to eat at the same rate, in how many more days will its total consumption be 91 pounds?8
11. A dress on sale in a shop is marked at $D. During the discount sale its price is reduced by 15%. Staff are allowed a further 10% reduction on the discounted price. If a staff member buys the dress what will she have to pay in terms of D ? 0.765D
12.
13. Half the people on a bus get off at each stop after the first, and no one gets on after the first stop. If only one person gets off at stop number 7, how many people got on at the first stop?64
14.
15.
16. 6 people meet for a business lunch. Each person shakes hands once with each other person present. How many handshakes take place?15

 


Chemistry Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=In_a_class_of_78_students_41_are_taking_French,_22_are_taking_German._Of_the_students_taking_French_or_German,_9_are_taking_both_courses._How_many_students_are_not_enrolled_in_either_course?

Question 1 (of 16)

 


Chemistry Hunt: QR Challenge

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

Question 2 (of 16)

 


Chemistry Hunt: QR Challenge

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

Question 3 (of 16)

 


Chemistry Hunt: QR Challenge

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

Question 4 (of 16)

 


Chemistry Hunt: QR Challenge

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

Question 5 (of 16)

 


Chemistry Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Amy_has_to_visit_towns_B_and_C_in_any_order._The_roads_connecting_these_towns_with_her_home_are_shown_on_the_diagram._How_many_different_routes_can_she_take_starting_from_A_and_returning_to_A,_going_through_both_B_and_C_(but_not_more_than_once_through_each)_and_not_travelling_any_road_twice_on_the_same_trip?

Question 6 (of 16)

 


Chemistry Hunt: QR Challenge

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

Question 7 (of 16)

 


Chemistry Hunt: QR Challenge

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

Question 8 (of 16)

 


Chemistry Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=3._Jo's_collection_contains_US,_Indian_and_British_stamps._If_the_ratio_of_US_to_Indian_stamps_is_5_to_2_and_the_ratio_of_Indian_to_British_stamps_is_5_to_1,_what_is_the_ratio_of_US_to_British_stamps?

Question 9 (of 16)

 


Chemistry Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=4._A_certain_animal_in_the_zoo_has_consumed_39_pounds_of_food_in_six_days._If_it_continues_to_eat_at_the_same_rate,_in_how_many_more_days_will_its_total_consumption_be_91_pounds?

Question 10 (of 16)

 


Chemistry Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_dress_on_sale_in_a_shop_is_marked_at_$D._During_the_discount_sale_its_price_is_reduced_by_15%._Staff_are_allowed_a_further_10%_reduction_on_the_discounted_price._If_a_staff_member_buys_the_dress_what_will_she_have_to_pay_in_terms_of_D_?

Question 11 (of 16)

 


Chemistry Hunt: QR Challenge

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

Question 12 (of 16)

 


Chemistry Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Half_the_people_on_a_bus_get_off_at_each_stop_after_the_first,_and_no_one_gets_on_after_the_first_stop._If_only_one_person_gets_off_at_stop_number_7,_how_many_people_got_on_at_the_first_stop?

Question 13 (of 16)

 


Chemistry Hunt: QR Challenge

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

Question 14 (of 16)

 


Chemistry Hunt: QR Challenge

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

Question 15 (of 16)

 


Chemistry Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=6_people_meet_for_a_business_lunch._Each_person_shakes_hands_once_with_each_other_person_present._How_many_handshakes_take_place?

Question 16 (of 16)