# 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. If c is the measure of the hypotenuse, find each missing measure. (a=9, b=?, c=12) 7.9
2. Find the distance (-2,2) (4,7). √61 or 7.8
3. The lengths of a triangle are given. Is the triangles is a right triangle. (a=6, b=10, c=12) No
4. Find the distance between each pair of points. R(0,4), S(-2,6) 10,2
5. The lengths of a right triangle are given.Is each triangle a right triangle? A=16, B=30, c=32 no
6. Classify the triangle by its angles and by its sides given 70,70,40 Isosceles acute
7. Find the distance (-2,7) (0,5). 2.8 or √8 or 2√2
8. Find the distance (9,-3) (4,4) 8.6 or √74
9. Find "x" if given 31 and 90. classify by its angle and sides 59, right scalene
10. A screen is 80 inches long and 45 inches high. what is the diagonal of the screen? 92
11. Classify the triangle by its sides given 20, 5, 155Obtuse scalene
12. The length of a triangle are given. is each triangle is a right triangle. (a=9, b=12 c=15) Yes
13. If c is the measure of the hypotenuse, find each missing measure . (a=30in., b=?, c=40)acute
14. Find the distance between each pair of points. F(1,3), G(6,3). No real sol.
15. Find the length of the hypotenuse of each right triangle Given 16,30,c 84, acute.
16. Find the length of the hypotenuse of each right triangle. Given 14, 18, c22.8
17. If c is the measure of the hypotenuse, find each missing measure. (a=?, B=16, C=29)24.2

### Pre-algebra review 10.-10.5: QR Challenge

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### Pre-algebra review 10.-10.5: QR Challenge

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