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QR Challenge: Comparing and Scaling Unit Test Review

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. 1. For every 4 miles David walked, Anthony walked 5 miles. Express this as a ratio of miles David walked to miles Anthony walked. Write this ratio as a fraction, decimal and percent.4/5 .80 80%
2. 2. At the food truck, 2 hamburgers cost $1.50. Determine how much you will spend if you are buying 1 hamburger each for 12 people.$9.00
3. 3. Sodas cost $25 for an 18-pack, $18 for a 12-pack and $8.99 for a 6-pack. Which is the best deal?18-pack
4. 4. Jordana buys 25 songs on iTunes. She spends $32.25 in total. If each song cost the same amount, how much did one song cost?$1.29
5. 5. How much would she have spent if she bought 31 songs?$39.99
6. 6. What is the total cost of a hoverboard that is $499.99 plus 7% sales tax?$534.99
7. 7. Half an avocado has about 8 grams of fat. How many grams of fat are in a dozen avocados?192 grams
8. 8. The markup at Sally's Skateboards is 75% of the buying price. What is the markup if the buying price is $15?$11.25
9. 9. What is the sales tax on a baseball hat that costs $22.90 with 5% sales tax?$1.15
10. 10. There are 16 ounces in one pound. How many ounces are in 10.5 pounds?168 ounces
11. 11. One apple cost $0.15. How much will 2 dozed apples cost?$3.60
12. 12. Which is the better buy? An 8-pack of glue sticks for $3.99 or 1 glue stick for $0.54?8-pack
13. 13. Which ratio is equivalent to 2:3? 4:5 or 32:48?32:48
14. 14. Tiffany makes 3 pottery bowls in 2 hours. Nat makes 5 bowls in 3 hours. Who makes bowls faster?Nat
15. 15. Michael and Xavier can walk 1 mile in 15 minutes. How far can they walk in 2 hours?8 miles

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=1._For_every_4_miles_David_walked,_Anthony_walked_5_miles.__Express_this_as_a_ratio_of_miles_David_walked_to_miles_Anthony_walked.__Write_this_ratio_as_a_fraction,_decimal_and_percent.

Question 1 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=2._At_the_food_truck,_2_hamburgers_cost_$1.50.__Determine_how_much_you_will_spend_if_you_are_buying_1_hamburger_each_for_12_people.

Question 2 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=3._Sodas_cost_$25_for_an_18-pack,_$18_for_a_12-pack_and_$8.99_for_a_6-pack.__Which_is_the_best_deal?

Question 3 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=4._Jordana_buys_25_songs_on_iTunes.__She_spends_$32.25_in_total.__If_each_song_cost_the_same_amount,_how_much_did_one_song_cost?

Question 4 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=5._How_much_would_she_have_spent_if_she_bought_31_songs?

Question 5 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=6._What_is_the_total_cost_of_a_hoverboard_that_is_$499.99_plus_7%_sales_tax?

Question 6 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=7._Half_an_avocado_has_about_8_grams_of_fat.__How_many_grams_of_fat_are_in_a_dozen_avocados?

Question 7 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=8._The_markup_at_Sally's_Skateboards_is_75%_of_the_buying_price.__What_is_the_markup_if_the_buying_price_is_$15?

Question 8 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=9._What_is_the_sales_tax_on_a_baseball_hat_that_costs_$22.90_with_5%_sales_tax?

Question 9 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=10._There_are_16_ounces_in_one_pound.__How_many_ounces_are_in_10.5_pounds?

Question 10 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=11._One_apple_cost_$0.15.__How_much_will_2_dozed_apples_cost?

Question 11 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=12.__Which_is_the_better_buy?__An_8-pack_of_glue_sticks_for_$3.99_or_1_glue_stick_for_$0.54?

Question 12 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=13._Which_ratio_is_equivalent_to_2:3?_4:5_or_32:48?

Question 13 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=14._Tiffany_makes_3_pottery_bowls_in_2_hours.__Nat_makes_5_bowls_in_3_hours.__Who_makes_bowls_faster?

Question 14 (of 15)

 


Comparing and Scaling Unit Test Review: QR Challenge

https://www.classtools.net/QR/decode.php?text=15._Michael_and_Xavier_can_walk_1_mile_in_15_minutes.__How_far_can_they_walk_in_2_hours?

Question 15 (of 15)