QR Challenge: Multiplying and Dividing Decimals

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. What is 4.28 x 4?	17.12
2. Baby Isabel plays with blocks. Each block is 3.7 inches tall. She has a collection of 41 blocks. If she could stack all of the blocks up one on top of the other, how many inches tall would her tower of blocks be?	151.7
3. Catherine split rope that was 49.4 inches into 4 equal parts. What is the length of each part?	12.35
4. Jim rides the bus to and from school each day. A one-way trip is 8.12 kilometres. How many kilometres does he travel in 3 days?	24.36
5. Rebecca has £22.44. Cards cost £7 each. How many cards can Rebecca buy?	4
6. Tina worked to earn £22.64. If she worked for 8 hours, how much money does Tina earn per hour?	£2.83

 

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