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QR Challenge: Grade 4 Estimation 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. Mrs. Synakowski collected 423 seashells. Mrs. Runninger collected 375 seashells. About how many seashells did they collect altogether?800 seashells
2. Brandon and Jonathan deliver newspapers as an after school job. Brandon delivers 132 newspapers each week, and Jonathan delivers 149 newspapers each week. About how many more newspapers does Jonathan deliver in a week thanBrandon?20 newspapers
3. Ryan has 4 buckets with 488 Legos in each of the buckets. About how many Legos does Ryan have in all?2,000 Legos
4. Mr. Tinker’s class collected 97 cans of food for the food drive, and Mrs. Hollenbeck’s class collected 72 cans of food. About how many more cans of food did Mr. Tinker’s class collect than Mrs. Hollenbeck’s class?30 cans of food
5. Julia has 665 beads in her bead box. She received 225 more beads as a gift. About how many beads does Julia have in all?900 beads
6. Miss McEvoy saved $185 a month for 6 months. About how much money did Miss McEvoy save altogether for 6 months?$1,200
7. Mrs. Woolheater read for 321 minutes over the summer. Mrs. Sanger read for 356 minutes over the summer, and Mrs. McCormack read for 349 minutes over the summer. About how many minutes they read altogether?1,000 minutes

 



Grade 4 Estimation Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Grade 4 Estimation Review
Q1/7:

Mrs. Synakowski collected 423 seashells. Mrs. Runninger collected 375 seashells. About how many seashells did they collect altogether?&choe=UTF-8

Question 1 (of 7)

 



Grade 4 Estimation Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Grade 4 Estimation Review
Q2/7:

Brandon and Jonathan deliver newspapers as an after school job. Brandon delivers 132 newspapers each week, and Jonathan delivers 149 newspapers each week. About how many more newspapers does Jonathan deliver in a week thanBrandon?&choe=UTF-8

Question 2 (of 7)

 



Grade 4 Estimation Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Grade 4 Estimation Review
Q3/7:

Ryan has 4 buckets with 488 Legos in each of the buckets. About how many Legos does Ryan have in all?&choe=UTF-8

Question 3 (of 7)

 



Grade 4 Estimation Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Grade 4 Estimation Review
Q4/7:

Mr. Tinker’s class collected 97 cans of food for the food drive, and Mrs. Hollenbeck’s class collected 72 cans of food. About how many more cans of food did Mr. Tinker’s class collect than Mrs. Hollenbeck’s class?&choe=UTF-8

Question 4 (of 7)

 



Grade 4 Estimation Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Grade 4 Estimation Review
Q5/7:

Julia has 665 beads in her bead box. She received 225 more beads as a gift. About how many beads does Julia have in all?&choe=UTF-8

Question 5 (of 7)

 



Grade 4 Estimation Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Grade 4 Estimation Review
Q6/7:

Miss McEvoy saved $185 a month for 6 months. About how much money did Miss McEvoy save altogether for 6 months?&choe=UTF-8

Question 6 (of 7)

 



Grade 4 Estimation Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=Grade 4 Estimation Review
Q7/7:

Mrs. Woolheater read for 321 minutes over the summer. Mrs. Sanger read for 356 minutes over the summer, and Mrs. McCormack read for 349 minutes over the summer. About how many minutes they read altogether?&choe=UTF-8

Question 7 (of 7)