# 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 123+446 569 \$18.25+12.75 \$31.00 Jenny is 32cm taller than Braden. Braden is 143cm tall. How tall is Jenny? 175cm A right angle measures _____° 180 ° A scalene triangle has___ 3 different sides Which is smaller? 0.7 or 0.07? 0.07 4 t = ____kg 4000kg 6 hours = ____ minutes 360 minutes An equilateral triangle has ___ lines of symmetry 3 3 ÷ 936 312 900cm = _____m 0.9m What is the perimeter of an octagon with 4cm sides? 32cm ⅙ of 18 3 How many vertices does a sphere have? 0 25 x 5 =____ 125 3 x \$700= ____ \$2100 Jock runs 50km per week. How far does he run over 10 weeks? 500km When an angle is more than 180 ° we say it is a ____ angle Reflex angle If a snail travels 6mm in 10 minutes, how far will it travel in 1 hour? 36mm 1500mL = ______ 1.5L Write ¾ as a decimal 0.75 What is the area of a square with 11cm sides? 121cm 456-323 133 I have 7 angles and 7 sides Heptagon Was \$9.99. Now \$8.50. Save___? \$149 ¼ = ______% 25% The sum of two numbers is 28. When you multiply them together, the answer is 160. What are the two numbers? 20and8 Halve 290 145 Jack & his 2 friends bought tickets to the World Cup. Each ticket costs \$124. How much did they spend altogether? \$372 Is ½ bigger than ⅔? No

### Maths QR Code Treasure Hunt: QR Challenge

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