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QR Challenge: Answers to 12-2 Geometric Series

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. r=-2; 8, -16, 32Q1
2. r=3/4;-27/16, -81/64, -243/256Q2
3. r=-3/2; -81/2, 243/4, -729/8Q3
4. 0.0000002Q4
5. 81√3Q5
6. 7/2Q6
7. 0.13125, 0.525, 2.1Q7
8. 1, 1/2, 1/4Q8
9. 1, 0.5Q9
10. 16, -8, 4 or -16, -8, -4Q10
11. 1.8435072Q11
12. 629,145Q12

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=r=-2;_8,_-16,_32

Question 1 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=r=3/4;-27/16,_-81/64,_-243/256

Question 2 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=r=-3/2;_-81/2,_243/4,_-729/8

Question 3 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=0.0000002

Question 4 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=81√3

Question 5 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=7/2

Question 6 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=0.13125,_0.525,_2.1

Question 7 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=1,_1/2,_1/4

Question 8 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=1,_0.5

Question 9 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=16,_-8,_4_or_-16,_-8,_-4

Question 10 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=1.8435072

Question 11 (of 12)

 



Answers to 12-2 Geometric Series: QR Challenge

https://www.classtools.net/QR/decode.php?text=629,145

Question 12 (of 12)