QR Challenge: Decimal Scavenger Hunt
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
- Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
- Bring these devices into the lesson.
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. Irvin bought six cans of soda at a cost of $1.33 per can. How much did she pay all together for the soda? | $7.98
|
2. Every week Darlene spends $46.89 on gas. How much would she spend on gas over a 5 week period? | $234.45
| 3. Clare went to a Party City to buy party favors to give out at her birthday party. She bought 15 erasers which cost $0.75 each. How much did the erasers cost altogether? | $11.25
| 4. Mark went to Home Depot and bought two pieces of copper tubing to complete a plumbing project. One piece measured 6.34 meters and the second piece measured 8.4 meters. How much longer is the second piece of copper tubing than the first piece? | 2.06 meters
| 5. Dan used 2.25 gallons of paint to paint his living room and 1.85 gallons of paint to paint a bedroom. How much paint did Dan use altogether for both rooms? | 4.10 gallons
| 6. Jesse's pitcher can hold 3.6 quarts of lemonade. If she makes 8 pitchers for her lemonade stand, how many total quarts will she have? | 28.8 quarts
| 7. Kelly is making Christmas stockings for her mantel. The pattern she is using calls for 0.875 yards for each stocking. How many yards of fabric will she need to make 6 stockings? | 5.25 yards
| 8. Chipolte restaurant uses 6.4 ounces of chicken for each burrito they make. How much chicken would be needed for 65 burritos? | 416 ounces
| 9. Phillip cut three pieces of insulation for his attic. Piece #1 measured 4.28 feet, piece #2 measured 4.08 feet and piece #3 measured 16.9 feet. What was the total length of the insulation? | 25.26 feet
| 10. Max caught a catfish that weighed 11.89 pounds. Jake caught a wide mouth bass that weighed 12.27 pounds. How much heavier is Jake's fish than Max's fish? | 0.38 pounds
| 11. Mrs. Dolezal went tire shopping. She bought four new tires that cost $112.39 each. How much did Mrs. Dolezal pay altogether for her new tires? | $449.56
| 12. A local health club is offering new memberships for $50.50 per month. If Amy buys a 6 month membership, how much will she spend? | $303
| 13. Nelli used 30.78 ounces of crushed tomatoes and 18.6 ounces of whole tomatoes for her chili recipe. How many total ounces of tomatoes does she use for her chili? | 49.38 ounces
| 14. Amanda bought 2.09 pounds of cheddar cheese and 0.785 pounds of mozzarella cheese. How much more cheddar cheese did she buy than mozzarella? | 1.305 pounds
| 15. Kerry's pet hamster weighed 0.981 pounds at birth. Her hamster, Izzy, now weighs 1.4 pounds. How much weight has her hamster gained since birth? | 0.419 pounds |
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Mrs._Irvin_bought_six_cans_of_soda_at_a_cost_of_$1.33_per_can.__How_much_did_she_pay_all_together_for_the_soda?
Question 1 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Every_week_Darlene_spends_$46.89_on_gas.__How_much_would_she_spend_on_gas_over_a_5_week_period?
Question 2 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Clare_went_to_a_Party_City_to_buy_party_favors_to_give_out_at_her_birthday_party.__She_bought_15_erasers_which_cost_$0.75_each.__How_much_did_the_erasers_cost_altogether?
Question 3 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Mark_went_to_Home_Depot_and_bought_two_pieces_of_copper_tubing_to_complete_a_plumbing_project.__One_piece_measured_6.34_meters_and_the_second_piece_measured_8.4_meters.__How_much_longer_is_the_second_piece_of_copper_tubing_than_the_first_piece?
Question 4 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Dan_used_2.25_gallons_of_paint_to_paint_his_living_room_and_1.85_gallons_of_paint_to_paint_a_bedroom.__How_much_paint_did_Dan_use_altogether_for_both_rooms?
Question 5 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Jesse's_pitcher_can_hold_3.6_quarts_of_lemonade.__If_she_makes_8_pitchers_for_her_lemonade_stand,_how_many_total_quarts_will_she_have?
Question 6 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Kelly_is_making_Christmas_stockings_for_her_mantel.__The_pattern_she_is_using_calls_for_0.875_yards_for_each_stocking.__How_many_yards_of_fabric_will_she_need_to_make_6_stockings?
Question 7 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Chipolte_restaurant_uses_6.4_ounces_of_chicken_for_each_burrito_they_make.__How_much_chicken_would_be_needed_for_65_burritos?
Question 8 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Phillip_cut_three_pieces_of_insulation_for_his_attic.__Piece_1_measured_4.28_feet,_piece_2_measured_4.08_feet_and_piece_3_measured_16.9_feet.__What_was_the_total_length_of_the_insulation?
Question 9 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Max_caught_a_catfish_that_weighed_11.89_pounds.__Jake_caught_a_wide_mouth_bass_that_weighed_12.27_pounds.__How_much_heavier_is_Jake's_fish_than_Max's_fish?
Question 10 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Mrs._Dolezal_went_tire_shopping.__She_bought_four_new_tires_that_cost_$112.39_each.__How_much_did_Mrs._Dolezal_pay_altogether_for_her_new_tires?
Question 11 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=A_local_health_club_is_offering_new_memberships_for_$50.50_per_month.__If_Amy_buys_a_6_month_membership,_how_much_will_she_spend?
Question 12 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Nelli_used_30.78_ounces_of_crushed_tomatoes_and_18.6_ounces_of_whole_tomatoes_for_her_chili_recipe.__How_many_total_ounces_of_tomatoes_does_she_use_for_her_chili?
Question 13 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Amanda_bought_2.09_pounds_of_cheddar_cheese_and_0.785_pounds_of_mozzarella_cheese.__How_much_more_cheddar_cheese_did_she_buy_than_mozzarella?
Question 14 (of 15)
Decimal Scavenger Hunt: QR Challenge
https://www.classtools.net/QR/decode.php?text=Kerry's_pet_hamster_weighed_0.981_pounds_at_birth.__Her_hamster,_Izzy,_now_weighs_1.4_pounds.__How_much_weight_has_her_hamster_gained_since_birth?
Question 15 (of 15)