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QR Challenge: Addition strategies for 2nd grade

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. What equals 8+7?15
2. What kind of problem is 4+5?neighbors or double plus one
3. Think doubles 6+8 is the same as 6 + ? +?6+6+2
4. What is 10 more than 47?57
5. What is 10 less than 88?78
6. 7+6 is what kind of fact?neighbors or doubles plus one
7. 5+5+6 is?16
8. Write a fast nine problem example 9+4=13
9. 7 and how much is 103
10. 2 and how much is 108
11. 88+21=?109

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_equals_8+7?

Question 1 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_kind_of_problem_is_4+5?

Question 2 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=Think_doubles_6+8_is_the_same_as_6_+_?_+?

Question 3 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_10_more_than_47?

Question 4 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_10_less_than_88?

Question 5 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=7+6_is_what_kind_of_fact?

Question 6 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=5+5+6_is?

Question 7 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=Write_a_fast_nine_problem

Question 8 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=7_and_how_much_is_10

Question 9 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=2_and_how_much_is_10

Question 10 (of 11)

 



Addition strategies for 2nd grade: QR Challenge

https://www.classtools.net/QR/decode.php?text=88+21=?

Question 11 (of 11)