Order of Operations WebQuest - Process
A. Order of Operations – PEMDAS
Go here to read about the order of operations and answer the questions that follow.
The acronym (abbreviation such as NFL for National Football League) PEMDAS is used for the order of operations. What does each letter in the acronym stand for?
1. First P___________________
2. Second E___________________
3. Third MD___________________
4. Fourth AS___________________
5. Why is it important that we always follow this order?
6. Create a flow chart that illustrates how the order of operations is performed.
You and your partner/group will create a flowchart. All charts will be posted on the board. Your partner/group will take turns and present your chart to the class for critique.
7. What mnemonic (words or phrase based off of the first letter in each word in a list) can you use to help you remember the order of operations?
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8. Create YOUR OWN mnemonic for the order of operations. For example; the mnemonic I created is Please Email My Dad A Shark.
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B. Kahn Academy (practice)
Go here to watch a video on solving an expression using order of operations and answer the questions that follow.
9. In the problem, 8 + (5) (4) – (6 + 10 / 2) +44 what was Step 1?
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10. What was Step 2?
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11. What was the last step?
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12. What is the answer?
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C. Examine the following and answer the questions.
Kim and Eric both worked the following problem, but got different answers.
KIM
5 + 2(16 ÷ 4) –10
5 + 2 = 7
7(16¸4) – 10
16 ÷ 4 = 4
7 · 4 – 10
28 – 10 = 18
Answer = 18
ERIC
5 + 2(16 ÷ 4) –10
16 ÷ 4 = 4
5 + 2(4) - 10
5 + 8 - 10
5 + 8 = 13
13 – 10 = 3
Answer = 3
13. Who is right and why?
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14. How would you explain this to the person who is wrong?
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D. Order of Operations Quiz
Go Here to take a short quiz on order of operations. Submit and record your scores.
15. After taking the quiz, submit your answers.
>What was your score? ______%
16. How many points did you earn out of 21? _____
17. If you missed any questions, what numbers were they?
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F. Order of Operations Game
Download the game here. http://tinyurl.com/a7b7xzz
Arrange the pieces to form a square such that each expression matches with an equivalent number. The four corners have been given to you. The pieces can be sideways, upside down, and turned around. You must show your work on a separate sheet of paper to receive full credit.
G. Create your OWN puzzle game with the help of your group members.
H. Wikipedia’s definition of Order of Operations
Click here to read more about the Order of Operations on Wikipedia. Use the information to answer the questions that follow.
18. Canada uses the acronym BEDMAS.
The “B” stands for what operation?___________
19. This operation is the same as what operation in PEMDAS? ______________________
20. The United Kingdom, Australia, and New Zealand commonly use the acronym BODMAS but it is sometimes written as BOMDAS. Sometimes the “D” for division is listed before the “M” for multiplication and sometimes the “M” for multiplication is listed before the “D” for division. Why can the “M” and the “D” switch places without changing the order of operations?
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