# 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. What is acute angle?Angle less than 90
2.
3. What is an obtuse angle?More than 90,less than 180
4.
5. How degrees in a right angle?90
6.
7. How many degrees in a straight angle?180
8.
9. What are complementary angles?Add up to 90
10.
11.
12. Vertical angles are congruent.True or False?True
13.
14. One acute angle of a right triangle measure 25 degrees. What is the measure of the other acute angle?65
15.
16. In a triangle ABC, ∠ A = 2X+7, ∠ B = 5X-9, and ∠ C = 6X. What is the value of x and what are the measures of angles A, B, and C?x=14; 84,35,61
17.
18. Find the missing angle of a quadrilateral if the other angles are 90, 109, and 74?87
19.
20. In a trapezoid, the measures of three angles are 88,96 and 57. What is the measure of the fourth angle?119
21.
22. In quadrilateral ABCD, Mx=6; 80
23.
24. The angle measures of a quadrilateral are 120, 14x+4, 29x+4, and 60. Find the value of x and find the missing angle measures.x=4; 60,120
25.
26. What type of quadrilateral has 4 congruent sides, and opposite sides that are parallel?Rhombus

### Angles, Triangles, Quads: QR Challenge

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