# Print

## 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

• Bring these devices into the lesson.

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.

### Question

1. Santa has 4 large bags to load onto his sleigh. He wants to load them in order from the heaviest to the lightest. Find the chart posted in the room to determine in what order the bags should be loaded.6
2. For Christmas, Santa wants to get Mrs. Claus everything on her wish list. He needs you to go to Target to pick up the items on her list! You will have \$1,000 to spend. How much change will you bring back. Her list is posted somewhere in the classroom.7
3. Santa needs you to bake 150 cookies for the elves who are hard at work making toys. Each batch of 15 cookies takes 30 minutes to bake. How many hours will it take you to bake 150 cookies?6
4. Santa needs you to pick up Christmas lights so that he and Rudolph can decorate the workshop. You will need to get 6 packs of lights. Each pack costs \$11.75. There is also a coupon for \$3.50 off your entire purchase. How much will it cost to buy 6 packs of lights?7
5. Santa needs you to work overtime to make some extra toys in time for Christmas. If you make 38 toys an hour and work for 14 hours, how many toys will you be able to make?8
6. Last year Santa had way too many cookies and glasses of milk! Now he needs a new suit! He needs you to go pick it up form the tailor. The pants cost \$85. The coat costs \$18 more than the pants. The hat costs \$27 less than the coat. How much money will you need to pay for the pants, the coat, and the hat?8
7. Santa needs you to pick up a Christmas tree from the Scholten's Christmas Tree Lot. The lot sells trees for \$12 a foot. If you only have \$100, what is that tallest tree you can get?8
8. Santa needs your help to build snowmen for the North Pole. Together, you and Santa will be able to build twice as many as Mrs. Claus. If Mrs. Claus builds 12 snowmen an hour, how many will you and Santa be able to build in 6 hours?8
9. Santa wants to buy Christmas cards to send to all the kids who wrote him letters this year. He needs to buy them in bulk. The card shop offers 3 different packs. Use the chart posted in the room to decide which pack offers Santa the best deal.7
10. Santa likes to buy his reindeer treats after Christmas. He needs you to pick up a box of candy canes from the store. If a box contains 120 candy canes, how many will each of his 9 reindeer get if he gives them an equal amount? How many will be left over?8
11. It's time to get wrapping! The elves need as much help as they can get to wrap presents for the big day. If you and 23 elves each wrap 55 presents an hour, how many presents will all of you be able to wrap in 8 hours?8
12. Santa needs you to order different color gumdrops so that he can decorate a gingerbread house with Mrs. Claus. He wants 2 packs of purple gumdrops, 1 pack of yellow gumdrops, and 3 packs of each red and green gum drops. Use the chart posted in the room to determine how much it will cost to order the gumdrops.8
13. Santa needs your help decorating the tree. He would like 3/4 of the ornaments to be red and 2/3 of the ornaments to be green. Will he have more red ornaments or more green ornaments?8
14. Santa needs help upgrading his sleigh. He needs you to figure out how much it would cost. He wants to install 2 new thrusters, new anti-collision sensors for all 9 reindeer, and a sprig of mistletoe to hang from his rear-view mirror. Use the chart posted in the room to determine how much it will cost for all the upgrades.8
15. Santa needs to put a new fence around the reindeer pen, but does not know how much fencing to order. The reindeer pen is 19.8 feet long and 23.5 feet wide. How much fencing will he need to order?8
16. Santa is trying to determine in what order to deliver presents to his three favorite cities. He has decided to start with the city with the smallest fraction of children on the naughty list. He will end with the city with the greatest fraction of children on the naughty list. Use the chart posted in the room to determine in what order Santa should visit the different cities.8
17. Santa loves to go Christmas caroling every year with a big group of friends. Each year his caroling group grows! He needs your help to recruit more carolers for this year. Use the chart posted in the room to find a pattern and figure out how many carolers Santa needs this year.8
18. Santa wants to serve milk and cookies to all of the elves on Christmas Eve. He has already ordered cookies, but still needs to decide how much milk to order. Each elf will get 1 cup of milk. If there are 325 elves, how many ounces of milk need to be ordered?8
19. Santa wants to take the Polar Express Train to visit his mother before Christmas. He needs you to make travel arrangements for him. If the train leaves at 10:42am and arrives at 3:25pm, how long will it take for Santa to reach his mother's village?8
20. As soon as Christmas is over, Santa is looking forward to heading back to Hawaii with Mrs. Claus for some rest and relaxation. He wants you to choose a vacation package. Use the charts posted in the room to determine which vacation package offers the best deal.8

### ER Math Skill Review: QR Challenge

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