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QR Challenge: Math- Unit 2 Review

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

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. Estimate- round to nearest tens 30 + 62 =30+60=90
2. Solve 30 + 62 =92
3. Estimate- round to nearest tens 68 + 21 =70+20=90
4. Solve 68 + 21 =89
5. Estimate- round to nearest tens 35 - 12 =40-10=30
6. Solve 35 - 12 =23
7. Estimate- round to the nearest tens 125 - 111 = 130-110=20
8. Solve 125 - 111 =14
9. Solve- Mrs. Polzine has 18 rocks.Mr. Polzine has 15 rocks.How many more rocks does Mrs. Polzine have? 3 more rocks
10. Solve- The trip meter on Mrs. Polzine's car read 61 miles.After her trip it read 95.How many miles did Mrs. Polzine drive? 34 miles
11. Solve- Mrs. Polzine ran for 25 minutes on Monday and 30 minutes on Tuesday. How many minutes did she run in all? 55 minutes
12. Solve- The temperature outside was 25 degrees in the afternoon.By bedtime it had dropped 21 degrees. What temperature was it at bedtime? 4 degrees
13. Write the fact family for 6,3,9 6+3=9, 3+6=9, 9-3+6, 9-6=3
14. Write down 3 odd numbers. answers vary
15. Write down 3 even number. answers vary

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q1/15:

Estimate- round to nearest tens 30 + 62 =&choe=UTF-8

Question 1 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q2/15:

Solve 30 + 62 =&choe=UTF-8

Question 2 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q3/15:

Estimate- round to nearest tens 68 + 21 =&choe=UTF-8

Question 3 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q4/15:

Solve 68 + 21 =&choe=UTF-8

Question 4 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q5/15:

Estimate- round to nearest tens 35 - 12 =&choe=UTF-8

Question 5 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q6/15:

Solve 35 - 12 =&choe=UTF-8

Question 6 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q7/15:

Estimate- round to the nearest tens 125 - 111 = &choe=UTF-8

Question 7 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q8/15:

Solve 125 - 111 =&choe=UTF-8

Question 8 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q9/15:

Solve- Mrs. Polzine has 18 rocks.Mr. Polzine has 15 rocks.How many more rocks does Mrs. Polzine have? &choe=UTF-8

Question 9 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q10/15:

Solve- The trip meter on Mrs. Polzine's car read 61 miles.After her trip it read 95.How many miles did Mrs. Polzine drive? &choe=UTF-8

Question 10 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q11/15:

Solve- Mrs. Polzine ran for 25 minutes on Monday and 30 minutes on Tuesday. How many minutes did she run in all? &choe=UTF-8

Question 11 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q12/15:

Solve- The temperature outside was 25 degrees in the afternoon.By bedtime it had dropped 21 degrees. What temperature was it at bedtime? &choe=UTF-8

Question 12 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q13/15:

Write the fact family for 6,3,9 &choe=UTF-8

Question 13 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q14/15:

Write down 3 odd numbers. &choe=UTF-8

Question 14 (of 15)

 



Math- Unit 2 Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Math- Unit 2 Review
Q15/15:

Write down 3 even number. &choe=UTF-8

Question 15 (of 15)