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QR Challenge: Probability

Created using the ClassTools QR Treasure Hunt Generator

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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

3. Print out the QR codes.

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

1. If the probability of a signal being red is 1/3. What is the probability of the signal being green2/3
2. If you roll two dice and multiply the answers together. What is the probability that the score will be less than 68/36
3. What is the probability of rolling the number 4 on a fair dice 1/6
4. A bag contains 5 red and 4 green balls. A ball is taken at random from the bag. What is the probability of getting a red ball5/9
5. A box contains bags of chips. There are 3 salt and vinegar 4 cheese and onion 2 beef flavoured bags. What is the probability of getting a beef or salt and vinegar bag?5/9
6. An ordinary dice and a fair coin is tossed. What is the probability of getting a number less than 3 and a tails. 2/12
7. Blake has two bags that contain crayons. Bag A contains a red, blue, orange and purple crayon. Bag B contains a red and yellow crayon. How many different combinations of crayons can you get if you choose one from each bag?8

 


Probability: QR Challenge

https://www.classtools.net/QR/decode.php?text=If-the-probability-of-a-signal-being-red-is-1/3.-What-is-the-probability-of-the-signal-being-green

Question 1 (of 7)

 


Probability: QR Challenge

https://www.classtools.net/QR/decode.php?text=If-you-roll-two-dice-and-multiply-the-answers-together.-What-is-the-probability-that-the-score-will-be-less-than-6

Question 2 (of 7)

 


Probability: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-the-probability-of-rolling-the-number-4-on-a-fair-dice

Question 3 (of 7)

 


Probability: QR Challenge

https://www.classtools.net/QR/decode.php?text=A-bag-contains-5-red-and-4-green-balls.-A-ball-is-taken-at-random-from-the-bag.-What-is-the-probability-of-getting-a-red-ball

Question 4 (of 7)

 


Probability: QR Challenge

https://www.classtools.net/QR/decode.php?text=A-box-contains-bags-of-chips.-There-are-3-salt-and-vinegar-4-cheese-and-onion-2-beef-flavoured-bags.-What-is-the-probability-of-getting-a-beef-or-salt-and-vinegar-bag?

Question 5 (of 7)

 


Probability: QR Challenge

https://www.classtools.net/QR/decode.php?text=An-ordinary-dice-and-a-fair-coin-is-tossed.-What-is-the-probability-of-getting-a-number-less-than-3-and-a-tails.

Question 6 (of 7)

 


Probability: QR Challenge

https://www.classtools.net/QR/decode.php?text=Blake-has-two-bags-that-contain-crayons.-Bag-A-contains-a-red,-blue,-orange-and-purple-crayon.-Bag-B-contains-a-red-and-yellow-crayon.-How-many-different-combinations-of-crayons-can-you-get-if-you-choose-one-from-each-bag?

Question 7 (of 7)