# 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

• 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.

### Questions / Answers (teacher reference)

 Question Answer Find the complimentary angles. What are two angles that add up to 90 degrees called? Complimentary A line that cuts across 2 parallel lines is called what? Transversal Find the measure of angle x Angles 2 and 8 are called what kinds of angles? Alternate Exterior What are two angles that add up to 180 degrees called? Supplementary Find the perpendicular lines. Find the parallel lines Parallel lines Angles 6 and 8 are called what kind of angles? Vertical Find the measure of angle x. How many degrees are in a triangle? 180 What is the measure of angle x? Angles that share a side are called what? Adjacent Find the measure of angle x. Angles 1 and 4 are called what kinds of angles? Alternate Interior Find the measure of angle x Angles 1 and 5 are called what kinds of angles? Corresponding List all the alternate interior angles. List all the alternate exterior angles Find x Draw a pair of parallel lines cut by a transversal. Estimate the measure of one angle and label it. Without using a protractor, label all the other angles with their approximate measure.

### Angles and Lines: QR Challenge

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