QR Challenge: What is the \"chance\"?

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.There were 6 purple socks and 4 orange socks in a drawer. Zucky picked one sock without looking and then another without looking (or replacing the first). What is the probability that he picked 2 purple socks?	1/3
2. 2. There are 10 boxes in a grab bag. The boxes are identical except that 7 of them contain $20 bills. A contest winner gets to pick two boxes from the grab bag. What is the probability of getting two $20 bills?	7/15
3. 3. A test has two multiple choice questions, each with five choices. What is the probability of guessing the correct answer to both questions?	1/25
4. 4. One letter is randomly selected from the word MATH, and a second letter is randomly selected from the word JOKES. What is the probability that both letters are vowels?	1/10
5. 5. If you flip a coin 150 times, about how many times would you expect to get heads?	75
6. 6. If you randomly pick a date in April, how many equally likely outcomes are there?	30
7. 7. The letters a,e,i,o,u,and y are vowels. If one letter of the alphabet is chosen at random, what is the probability it is a vowel?	3/13
8. 8. A magician asks you to pick a card, any card, from a standard deck of 52 cards. What is the probability of picking an ace?	1/13
9. 9. What is the probability of guessing the correct answer to a multiple choice question if there are 5 choices?	1/5
10. 10. What is the probability your birthday will fall on a Saturday or Sunday?	2/7
11. 11. A class of 25 students has 15 girls and 10 boys. If one student is chosen at random, what is the probability it is a girl?	3/5
12. 12. What is the probability of guessing the correct answer to a true/false questions?	1/2
13. 13. What is the probability of winning a raffle if 500 tickets are sold and you buy 5 of them?	1/100
14. 14, There are 26 letters in the alphabet. What is the probability that a lette chosen at random is in the word MATHEMATICS?	4/13

 

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