QR Challenge: Find the Probability

Created using the ClassTools QR Treasure Hunt Generator

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

• Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
• Bring these devices into the lesson.

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. 1. A bag contains 7 black, 8 blue and 11 green marbles. P(blue)	8/26 or 4/13
2. 2. A number is drawn from 28 to 63 at random. P(30)	1/9
3. 3. A bag contains 12 yellow, 16 white and 14 red marbles. P(not white)	26/42 or 13/21
4. 4. A card is drawn from a well shuggled pack of cards. P(diamond).	1/52
5. 5. A number is drawn from 80 to 100 at random. P(a number less than 85).	1/5
6. 6. A bag contains 16 red, 20 violet and 12 pink marbles. P(red or pink).	7/12
7. 7. A card is drawn from a deck of cards. P(ace)	1/13
8. 8. A bag contains 6 red, 15 green and 18 yellow marbles. P(not green).	24/39
9. 9. A card is drawn from a deck of cards. P(king or queen)	2/13
10. 10. You roll a die numbered from 1 to 6. P(4 or 5).	1/3

 

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