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Introduction

Mathematics Order of Operations. Lesson. Quiz. Introduction. Directions. Directions. Throughout this PowerPoint lesson YOU can control how fast you go and where to go next!

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Introduction

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  1. Mathematics Order of Operations Lesson Quiz Introduction Directions

  2. Directions Throughout this PowerPoint lesson YOU can control how fast you go and where to go next! At any time, you can click the yellow house in the upper left hand corner to return to the home page; here is where you can choose to see the introduction, lesson, or start the quiz The purple arrows on the bottom corners will take you to the next slide. Have fun!

  3. Introduction • By the end of this math lesson, 6th grade students will be able to: • State the order of operations • Put into practice the order of operations when solving equations • This lesson fulfills the following Ohio Content Standard: Mathematics- Number, Number Sense and Operations: • Use order of operations, including use of parenthesis and exponents to solve multi-step problems, and verify and interpret the results.

  4. Lesson Solve the following equation: 3 + 5 x 6 What answer did you get? Some of you may have said 48 but in fact, the right answer is 33! Now look at this word problem: Sue fills 5 baskets with 6 apples each. She has 2 apples in her hands. How many apples are there? We know that Sue has 33 apples by writing the number sentence: 5 X 6 + 2 Isn't that the same as 2 + 5 x 6? Yes, it is!

  5. Lesson The Order of Operations is the order created to solve equations with multiple operations. Everyone will be able to solve the problem and get the correct answer by knowing this method!

  6. Lesson • First, do any calculations inside parentheses. • Next, solve the numbers that have exponents • Then, compute, from left to right, all multiplication and division • Last, from left to right, solve the addition and subtraction

  7. Lesson A fun way to remember the order is to say: Please Excuse My DearAunt Sally Parentheses Exponents Multiply Divide Add Subtract Click HERE to see a fun song about the Order of Operations!

  8. Lesson Remember, just because the sentence has multiply before divide and add before subtract does not mean you multiply and add first. Always go from left to right, if a minus if first followed by a plus, do the subtraction first!

  9. Lesson Let’s look at some examples and the order to solve them: 14÷7 – 1 =14 ÷ 7 - 1 Division = 2 – 1 Subtraction = 1 (35- 5)x 4 =(35-5) x 4 Parentheses = 30 x 4 Multiplication = 120

  10. Lesson Here’s a more complicated one: 9 - 5 ÷ (8 - 3) x 2 + 6 9 - 5 ÷(8-3) x 2 + 6 = 9 - 5 ÷ 5 x 2 + 6 Parentheses 9 - 5 ÷ 5 x 2 + 6 = 9 - 1 x 2 + 6 Division 9 - 1 x 2 + 6 = 9 - 2 + 6 Multiplication 9 - 2 + 6 = 7 + 6 Subtraction 7 + 6  =13 Addition

  11. Lesson Completed! Congratulations, you’ve successfully learned what the correct order of operations is! Most importantly, you now know how to apply it when solving mathematical equations. Click HEREfor more practice problems! Click to restart to lesson Click to begin the quiz

  12. Quiz 1. Solve the following equation using the correct order of operations: 8 x 5 + 2 – (4 x 9) + 1 = a. 21 b. 7 c. 5

  13. Good Job! You knew the correct order to solve the problem!

  14. Try Again! Hint: Do the parentheses first then multiply…

  15. Quiz 2. What is the next operation you should do in an equation: Parentheses, Exponents, _____, _____ a. Addition, Multiplication b. Subtraction, Division c. Multiplication, Division

  16. Good Job! You knew the correct order to solve the problem!

  17. Try Again! Hint: Remember “My Dear Aunt Sally”!

  18. Quiz 3. Solve the following equation using the correct order of operations: (30 + 4 – 2) ÷ 4 x 10 + (40 ÷ 2) + 6 = a. 106 b. 260 c. 147

  19. Try Again! Hint: Parentheses first!

  20. Good Job! You knew the correct order to solve the problem!

  21. *Quiz Completed * Well done! You’ve successfully learned how the order of operations works and how to use it when solving equations. This is very important for all of your future math classes! Click to go the home page Click to see the citations

  22. Citations • Transitions, sounds, and multiple graphics: • Microsoft PowerPoint Program • Lesson ideas: • http://www.mathgoodies.com/lessons/vol7/order_operations.html • http://www.mathcats.com/grownupcats/ideabankorderofoperations.html • Background image: • http://www.pptbackgrounds.net/uploads/math-time-backgrounds-wallpapers.jpg

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