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QR Challenge: Dewey and His Decimals

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. Put the following whole numbers in order from least to greatest: 641, 261, 164, 645, 426.x
2. 2. Write the number 708.57 in words, and write the number four hundred eleven and eight thoughsandths in digits. x
3. 3. Of the numbers 966.9, 966.009, and 966.99, which is greatest and which is the least? x
4. 4. Which two of these numbers have a zero in the hundredths place? Which two have an eight in the thousandths place? Which two have an eight in the thousandths place? 508.08, 187.008, 620.909, 300.068.x
5. 5. Look at the numbers. Write into a place-value chart only the numbers that have a four in the tenths place, the hundredths place, or the thousandths place: 035.849, 410.4, 645.293, 166.47, 537.834, 724.043 x

 


Dewey and His Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=1._Put_the_following_whole_numbers_in_order_from_least_to_greatest:_641,_261,_164,_645,_426.

Question 1 (of 5)

 


Dewey and His Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=2._Write_the_number_708.57_in_words,_and_write_the_number_four_hundred_eleven_and_eight_thoughsandths_in_digits.

Question 2 (of 5)

 


Dewey and His Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=3._Of_the_numbers_966.9,_966.009,_and_966.99,_which_is_greatest_and_which_is_the_least?

Question 3 (of 5)

 


Dewey and His Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=4._Which_two_of_these_numbers_have_a_zero_in_the_hundredths_place?_Which_two_have_an_eight_in_the_thousandths_place?_Which_two_have_an_eight_in_the_thousandths_place?_508.08,_187.008,_620.909,_300.068.

Question 4 (of 5)

 


Dewey and His Decimals: QR Challenge

https://www.classtools.net/QR/decode.php?text=5._Look_at_the_numbers._Write_into_a_place-value_chart_only_the_numbers_that_have_a_four_in_the_tenths_place,_the_hundredths_place,_or_the_thousandths_place:_035.849,_410.4,_645.293,_166.47,_537.834,_724.043

Question 5 (of 5)