Presentation on theme: "Order of operations Introduction"— Presentation transcript:
1 Order of operationsIntroductionCan you go to your classes whenever you want or do you have to follow the order of the schedule you were assigned?Will your locker open if you use the three numbers in any order?Does it matter if you turn the lock to the left or to the right first? Does x 3 equal 21 or 17?You will be using this WebQuest to find out the order of operations that must be followed when evaluating mathematical expressions so that everyone gets the same answer.
2 Question #1Please put you r name and your partner’s on you answer sheet.1) list four operations.X = + -
3 Question #22)What is the order of operations ? B____________ E____________ D____________ M___________ A____________ S_____________
4 Question #3 Listen to the song. Use head phones or low volume. Does it help you remember BEDMAS ? Answer on your sheet.
5 Question #44) other countries call BEDMAS by different names. Use this link to find out what they are.Answer on your sheet.BEDMAS by many names
6 Question #5Mnemonics are often used to help students remember the rules, but the rules taught by the use of acronyms can be misleading. In the United States the acronym PEMDAS is common. It stands for Parentheses, Exponents, Multiplication, Division, Addition, Subtraction. PEMDAS is often expanded to "Please Excuse My Dear Aunt Sally" with the first letter of each word creating the acronym PEMDAS. Canada uses BEDMAS. It stands for Brackets, Exponents, Division, Multiplication, Addition, SubtractionWhat Mnemonic can you come up to help you remember BEDMAS ?
7 Question #6Solve this question. Then check the video to see if you are correct.X4 -2X3 +3Watch the video below ( headphones or low volume)
8 Question #7Take the quiz below. Record your score on the answer sheet. You can take it as a team or each play separately.
9 Question #8Play the matching game. Record your experience by answering the questions on your answer sheet.
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