# Print

## 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

• Bring these devices into the lesson.

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.

### Question

1. Word 1, 4 letters: A rectangle is 7 times as long as it is wide. Its perimeter is 48cm. What is its area? (NEXT STOP: Recycling area ).63
2. Word 1, 4 letters: 16 lamp posts stand equally spaced along a straight road. How many times further is it from the 1st to the 16th than it is from the 1st to the 6th? (NEXT STOP: Top of the main corridor ).3
3. Word 1, 4 letters: I'm having trouble sleeping, the time is 01:32. To try and get me to sleep, I work out how many minutes it will be until the clock shows all the digits 0, 1, 2 & 3 again. What is my answer? (NEXT STOP: Science block ).41
4. Word 1, 4 letters: Work out 3 + 3 - 8 / 2 x 20 / 5 x -4 - 4 (NOTE: / means 'divide') (NEXT STOP: Room 22 ).12
5. Word 2, 8 letters: Which number when you spell it out has as many letters as its value? (e.g. 7 = seven, which has 5 letters: not equal to 7) (NEXT STOP: Middle of the main corridor ).4
6. Word 2, 8 letters: I have a farm with cows, pigs, sheep and chickens only. One third are cows, one quarter are pigs and one sixth are sheep. I have 6 chickens. How many animals do I have in total? (NEXT STOP: Reprographics ).24
7. Word 2, 8 letters: I have 5 numbers: 5, 5, 3, 5 and a secret number. I can tell you that the mean, median and mode of the 5 numbers are all the same. What is my secret number? When you have your answer, add 53 to it, what number have you got?(NEXT STOP: Outside pastoral hub ).60
8. Word 2, 8 letters: What is 30% of 2020 + 2020% of 30? When you have your answer, subtract 1152 from it, what number have you got?(NEXT STOP: Room 22 ).60
9. Word 2, 8 letters: A teacher surveyed Year 10, asking if they had a bike or roller blades, both or neither. There are 120 students in total, 28 had neither a bike nor blades, 68 had a bike, 43 had skates. How many had both?(NEXT STOP: Maths lockers ).19
10. Word 2, 8 letters: There is only one number which when spelt out, all the letters are in alphabetical order. What is the number? (HINT: it is less than 100). Subtract 21 from your number, what number do you have now? (NEXT STOP: Sports Hall ).19
11. Word 2, 8 letters: Work out 7 x 7 / 7 / 77 x 7 x 77 / 7 (NOTE: / means 'divide') (NEXT STOP: Bottom of the main corridor ).7
12. Word 2, 8 letters: What is the next letter in the sequence: O, T, T, F, F, S, S, E, N, ... ? What position in the alphabet is the letter? Subtract 8 from this number, what number have you got now?12
13. Word 3, 3 letters: What is the next letter in the sequence: H, E, N, N, E,... ? What position in the alphabet is the letter? Square this number, what number have you got now? (NEXT STOP: Main yard ).4
14. Word 3, 3 letters: I have some marbles. All but 8 are red, all but 8 are blue, all but 8 are green. How many marbles do I have? (NEXT STOP: Rooms 30-33 ).12
15. Word 3, 3 letters: What is the next letter in the sequence: M, A, M, J, J, A, S, ... ? What position in the alphabet is the letter? Multiply this number by 4, what number have you got now? (NEXT STOP: English block ).60
16. Word 4, 4 letters: I'm thinking of a number. When I add 3, then times by 4, then divide by 5, I get 8. What is the number I'm thinking of? (NEXT STOP: Room 22 ).7
17. Word 4, 4 letters: Charlie has 6 cats. She shares some treats equally among them. Unfortunately her favourite cat Pussington Boots is poorly and does not want any treats. This means the other 5 cats now receive an extra 2 treats each. How many treats did Charlie buy? (NEXT STOP: Language block ).60
18. Word 4, 4 letters: I'm thinking of a number. When I take 8, then divide by 4, then times by 5, I get 5. What is the number I'm thinking of? (NEXT STOP: LRC ).12
19. Word 4, 4 letters: In an orchard there are 150 trees which are either apple or pear. 62 are apple trees. Unfortunately a tree plague has infected the orchard. One third of the trees are infected, including 21 pear trees. How many apple trees are NOT rotten? (NEXT STOP: Room 22 ).33

### 10h1 End of Year Treasure Hunt: QR Challenge

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