QR Challenge: Ratio QR Challenge WEBBO Year 8

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. simplify this ratio 72: 54	4:3
2. I need to make some orange squash for my break. I use the ratio I part juice to 9 parts water. If I make a 500ml bottle how much squash will I need	50ml
3. If three apples cost 45p, how much would five apples cost?	75p
4. Norman is 16 years old. His sister is 24 years old. What's the ratio of Norman's age to his sister's age? Give your answer in its simplest form.	2:3
5. A recipe for vegetable curry needs 300 grams of rice, and it feeds 4 people. How much rice would be needed for 7 people?	525g
6. £60 is to be divided between Miss Webb and Mr Dale in the ratio 2:3. How much does Miss Webb get?	24
7. There are 15 girls and 12 boys in a class. What is the ratio of girls to boys? Give your answer in its simplest form.	5:4
8. 4:9 = 1:?	2.25
9. If Edgar had 72 balloons and shared them between his friends Fred and Monty in the ratio 1:3:4 how many balloons are there in the biggest share?	36
10. Tea bags come in three sizes: small 40 bags for 72p medium: 100 bags for £1 and large:200 for £1.60 Which one is the best value for 20bags?	large
11. MegaQuestion Ann and Bob share £240 in the ratio 3:5.Then Ann gives 1/2 of her share to Colin.Bob gives 1/10 of his share to Colin.How much does each person have now?What is the ratio of Ann's amount to Bob's amount to Colin's amount?	now return to I5

 

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