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QR Challenge: Converting length

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. 1. Lucy goes to gymnastics twice every week. Her gymnastics club is 2km away. How far does she travel there and back each week in metres?8000 metres
2. 2. Peter skates down a hill. The hill is 1 ¼ km long. How far is this in metres?1250 metres
3. 3. Mrs Drewry’s left arm is 47cm long. Her right arm is 51cm long. How long are both her arms put together in mm?980mm
4. 4. Mrs Baker has 3 pens which she carries around in her beautiful handbag that is made from tea leaves. The pencils are 170mm, 120mm and 90mm long. What is the total length of all the pens in cm?38cm
5. 5. Miss Thompson has very long toes. Both her big toes are 7cm long. Both her little toes are 3cm long and all the other toes are 5cm long. What is the total length of all her toes? Give your answer in cm and mm.50cm and 500mm
6. 6. Mrs Cunningham has to drive 7 km to get to school. On Monday she drove to school and when arrived at 8am, she realised she’d forgotten her laptop, drove back home, picked up the laptop, then returned to school. How far did she drive before school started? Give your answer in km and m.14km and 1400m
7. 7. One day, Mr Walker decides to line up all the pencils in his classroom. The total length is 2.31m. Can you help him work out how long is this in cm and mm?231cm and 2310mm
8. 8. Mr. Dean is measuring his office doorframe. He says it is 2m and 32cm tall. Mrs. Edwards disagrees, and says that it it 2m and 45cm tall. What is the difference in their answers in mm?130mm

 


Converting length: QR Challenge

https://www.classtools.net/QR/decode.php?text=1.-Lucy-goes-to-gymnastics-twice-every-week.-Her-gymnastics-club-is-2km-away.-How-far-does-she-travel-there-and-back-each-week-in-metres?

Question 1 (of 8)

 


Converting length: QR Challenge

https://www.classtools.net/QR/decode.php?text=2.-Peter-skates-down-a-hill.-The-hill-is-1-¼-km-long.-How-far-is-this-in-metres?

Question 2 (of 8)

 


Converting length: QR Challenge

https://www.classtools.net/QR/decode.php?text=3.-Mrs-Drewry’s-left-arm-is-47cm-long.-Her-right-arm-is-51cm-long.-How-long-are-both-her-arms-put-together-in-mm?

Question 3 (of 8)

 


Converting length: QR Challenge

https://www.classtools.net/QR/decode.php?text=4.-Mrs-Baker-has-3-pens-which-she-carries-around-in-her-beautiful-handbag-that-is-made-from-tea-leaves.-The-pencils-are-170mm,-120mm-and-90mm-long.-What-is-the-total-length-of-all-the-pens-in-cm?

Question 4 (of 8)

 


Converting length: QR Challenge

https://www.classtools.net/QR/decode.php?text=5.-Miss-Thompson-has-very-long-toes.-Both-her-big-toes-are-7cm-long.-Both-her-little-toes-are-3cm-long-and-all-the-other-toes-are-5cm-long.-What-is-the-total-length-of-all-her-toes?-Give-your-answer-in-cm-and-mm.

Question 5 (of 8)

 


Converting length: QR Challenge

https://www.classtools.net/QR/decode.php?text=6.-Mrs-Cunningham-has-to-drive-7-km-to-get-to-school.-On-Monday-she-drove-to-school-and-when-arrived-at-8am,-she-realised-she’d-forgotten-her-laptop,-drove-back-home,-picked-up-the-laptop,-then-returned-to-school.-How-far-did-she-drive-before-school-started?-Give-your-answer-in-km-and-m.

Question 6 (of 8)

 


Converting length: QR Challenge

https://www.classtools.net/QR/decode.php?text=7.-One-day,-Mr-Walker-decides-to-line-up-all-the-pencils-in-his-classroom.-The-total-length-is-2.31m.-Can-you-help-him-work-out-how-long-is-this-in-cm-and-mm?

Question 7 (of 8)

 


Converting length: QR Challenge

https://www.classtools.net/QR/decode.php?text=8.-Mr.-Dean-is-measuring-his-office-doorframe.-He-says-it-is-2m-and-32cm-tall.-Mrs.-Edwards-disagrees,-and-says-that-it-it-2m-and-45cm-tall.-What-is-the-difference-in-their-answers-in-mm?

Question 8 (of 8)