QR Challenge: 3 Digit Addition with Regrouping?

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. Mary has 132 pennies. Kristie gives her 256 more. How many pennies does she have?	answer
2. Kevin ate 35 Snickers and 132 Kit Kats. How many candy bars did he eat?	answer
3. Tracey collected 34 marbles. Mark gave her 345 more marbles. How many does she have in all?	answer
4. Mrs. McCollum had $312. Mrs. Hubbard gave her $214. How much money does she have?	answer
5. Parker sat in time out for 42 minutes. Cash sat in time out for 31 minutes. How many minutes did they both sit?	answer

 

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