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QR Challenge: Averages

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. During a football season, a team played 15 matches. They scored the following: 1, 0, 6, 0, 1, 3, 2, 3, 2, 0, 1, 1, 5, 3, 0. Find the mode0, 1
2. A taxi driver has 11 calls during one day. the number of passengers she carries on each journey are as follows: 5, 4, 1, 3, 6, 4, 3, 1, 2, 1, 3 What is the mean number of passengers?3
3. Ella is buying a dress. The prices are of her choices are: £300, £250, £25, £75, £200, £180. What is the range of price?£275
4. Nine friends going shopping. They spent: $4, $6, $4, $38, $10, $4, $3, $7, $5. Work out the mode.$4
5. Nine friends going shopping. They spent: $4, $6, $4, $38, $10, $4, $3, $7, $5. Work out the mean money spent.$9
6. Nine friends going shopping. They spent: $4, $6, $4, $38, $10, $4, $3, $7, $5. Work out the median amount of money spent.$6
7. A salesman buys petrol. The following quantities he buys in one week: 20l, 14l, 16l, 12l, 17l, 12l, 30l. Find the median amount he buys.16l
8. The maths department drinks tea and coffe in break time. Here are the amount of cups per day (from Monday to Friday): 3, 5, 4, 3, 1 What is the range of cups?4
9. During four weeks Becky earns a wage of £323 per week. How much money does she earns in total over the 4 weeks?£1292
10. 5 cards with numbers on have a mean of 20. If four cards show 10, 30, 30 and 20, what is the number on the fifth card?10

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=During-a-football-season,-a-team-played-15-matches.-They-scored-the-following:-1,-0,-6,-0,-1,-3,-2,-3,-2,-0,-1,-1,-5,-3,-0.-Find-the-mode

Question 1 (of 10)

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=A-taxi-driver-has-11-calls-during-one-day.-the-number-of-passengers-she-carries-on-each-journey-are-as-follows:-5,-4,-1,-3,-6,-4,-3,-1,-2,-1,-3-What-is-the-mean-number-of-passengers?

Question 2 (of 10)

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=Ella-is-buying-a-dress.-The-prices-are-of-her-choices-are:-£300,-£250,-£25,-£75,-£200,-£180.-What-is-the-range-of-price?

Question 3 (of 10)

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=Nine-friends-going-shopping.-They-spent:-$4,-$6,-$4,-$38,-$10,-$4,-$3,-$7,-$5.-Work-out-the-mode.

Question 4 (of 10)

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=Nine-friends-going-shopping.-They-spent:-$4,-$6,-$4,-$38,-$10,-$4,-$3,-$7,-$5.-Work-out-the-mean-money-spent.

Question 5 (of 10)

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=Nine-friends-going-shopping.-They-spent:-$4,-$6,-$4,-$38,-$10,-$4,-$3,-$7,-$5.-Work-out-the-median-amount-of-money-spent.

Question 6 (of 10)

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=A-salesman-buys-petrol.-The-following-quantities-he-buys-in-one-week:-20l,-14l,-16l,-12l,-17l,-12l,-30l.-Find-the-median-amount-he-buys.

Question 7 (of 10)

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=The-maths-department-drinks-tea-and-coffe-in-break-time.-Here-are-the-amount-of-cups-per-day-(from-Monday-to-Friday):-3,-5,-4,-3,-1-What-is-the-range-of-cups?

Question 8 (of 10)

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=During-four-weeks-Becky-earns-a-wage-of-£323-per-week.-How-much-money-does-she-earns-in-total-over-the-4-weeks?

Question 9 (of 10)

 


Averages: QR Challenge

https://www.classtools.net/QR/decode.php?text=5-cards-with-numbers-on-have-a-mean-of-20.-If-four-cards-show-10,-30,-30-and-20,-what-is-the-number-on-the-fifth-card?

Question 10 (of 10)