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QR Challenge: The Search for Inequalities

Created using the ClassTools QR Treasure Hunt Generator

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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. Solve and graph: x-9 is less than 16{x|x<25}
2. Solve and graph: 8g > 7g-1{g|g>-1}
3. Solve the inequality: 15v > 60{v|v>4}
4. Solve the inequality: -9m < 99{m|m>-11}
5. Solve the inequality: (3/5)k is less than or equal to -15{k|k is less than or equal to -25}
6. Solve: 7(g+8)< 3(g+2)+4g Hint: True or FalseEmpty Set
7. Solve: -5x+3 is less than or equal to 3x+19{x|x is greater than or equal to -2}
8. Solve: (3/4)w < 15{w|w < 20}
9. There are more than 10,000 varieties of tomatoes. One seed company produces seed packages for 200 varieties of tomatoes. For how many varieties do they not provide seeds? t+200 > 10,000 {t|t > 8000}
10. Eighty percent of a number is greater than or equal to 24..8n > or equal to 24 {n|n > or equal to 30}

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve-and-graph:-x-9-is-less-than-16

Question 1 (of 10)

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve-and-graph:-8g->-7g-1

Question 2 (of 10)

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve-the-inequality:-15v->-60

Question 3 (of 10)

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve-the-inequality:--9m-<-99

Question 4 (of 10)

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve-the-inequality:-(3/5)k-is-less-than-or-equal-to--15

Question 5 (of 10)

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve:-7(g+8)<-3(g+2)+4g-Hint:-True-or-False

Question 6 (of 10)

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve:--5x+3-is-less-than-or-equal-to-3x+19

Question 7 (of 10)

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=Solve:-(3/4)w-<-15

Question 8 (of 10)

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=There-are-more-than-10,000-varieties-of-tomatoes.-One-seed-company-produces-seed-packages-for-200-varieties-of-tomatoes.-For-how-many-varieties-do-they-not-provide-seeds?

Question 9 (of 10)

 


The Search for Inequalities: QR Challenge

https://www.classtools.net/QR/decode.php?text=Eighty-percent-of-a-number-is-greater-than-or-equal-to-24.

Question 10 (of 10)