QR Challenge: Chapter 3 Multiplication

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.

---

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. First estimate then solve to find the product. 58x23	1800, 1334
2. First estimate then use place Value and Partial to solve. 34 x 18	600, 612
3. Marcus has 18 boxes of baseball trading cards with 20 in each box. Stephen has 15 boxes of trading cards with 10 in each box. How many more baseball trading cards does Marcus have than Stephen?	Marcus has 210 more baseball cards
4. Estimate and solve to find the product. 42 x 16	672
5. Divide 125 / 5	25

 

---