QR Challenge: Year 8 Fractions, Decimals & Percentages
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. What is the difference between a terminating and non- terminating decimal? | terminating decimal has a defined number of digits after the decimal point, and non- terminating has an infinite number of digits
|
2. Write 0.58 as a fraction in simplest form | 29/50
| 3. What type of decimal is 11/9 (terminating, recurring or irrational)? | recurring
| 4. What is 14% of $48? (calculate to 2 decimal places) | $6.72
| 5. Victor earns $812 dollars per week and he receives a pay rise of $44. Write Victors’s pay rise as a percentage (%) of his weekly pay. | 5.4%
| 6. Increase $450 by 35% | $607.50
| 7. Decrease $19,95 by 20% | $15.96
| 8. If you increase 156kg by 28%, what will be the final weight? | 199.68kg
| 9. Write 19/11 in exact decimal form | 1.72(dot on top of 7 and 2, or line above 72)
| 10. If I had 80cm of rope, and needed to cut it up into 9cm sections, how many sections could I cut? | 8
| 11. John bought a car for $28,000, but sold it 1 year later for $20,000. Write his decrease in value as a percentage of his original price (round 1 whole number) | 29%
| 12. Anna scored 10 out of 20 in her first science test. However if she improved on her next science test by 30%, what would her result be? | 13/20
| 13. Write 0.60 as a fraction in simplest form | 3/5
| 14. Write 12/18 in exact decimal form | 0.6 (a dot on top of the 6, or a line above the 6)
| 15. Joanne earns $600 a week. If she gets a pay rise on 30%, what will her new pay be? | $780 |
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=What_is_the_difference_between_a_terminating_and_non-_terminating_decimal?
Question 1 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=Write_0.58_as_a_fraction_in_simplest_form
Question 2 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=What_type_of_decimal_is_11/9_(terminating,_recurring_or_irrational)?
Question 3 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=What_is_14%_of_$48?_(calculate_to_2_decimal_places)
Question 4 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=Victor_earns_$812_dollars_per_week_and_he_receives_a_pay_rise_of_$44._Write_Victors’s_pay_rise_as_a_percentage_(%)_of_his_weekly_pay.
Question 5 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=Increase_$450_by_35%
Question 6 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=Decrease_$19,95_by_20%
Question 7 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=If_you_increase_156kg_by_28%,_what_will_be_the_final_weight?
Question 8 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=Write_19/11_in_exact_decimal_form
Question 9 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=If_I_had_80cm_of_rope,_and_needed_to_cut_it_up_into_9cm_sections,_how_many_sections_could_I_cut?
Question 10 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=John_bought_a_car_for_$28,000,_but_sold_it_1_year_later_for_$20,000._Write_his_decrease_in_value_as_a_percentage_of_his_original_price_(round_1_whole_number)
Question 11 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=Anna_scored_10_out_of_20_in_her_first_science_test._However_if_she_improved_on_her_next_science_test_by_30%,_what_would_her_result_be?
Question 12 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=Write_0.60_as_a_fraction_in_simplest_form
Question 13 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=Write_12/18_in_exact_decimal_form
Question 14 (of 15)
Year 8 Fractions, Decimals & Percentages: QR Challenge
https://www.classtools.net/QR/decode.php?text=Joanne_earns_$600_a_week._If_she_gets_a_pay_rise_on_30%,_what_will_her_new_pay_be?
Question 15 (of 15)