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Evaluating Expressions The Order of Operations Lesson 1

Evaluating Expressions The Order of Operations Lesson 1 . Warm Up/Do Now. OBJECTIVE : SWBAT indentify and begin to follow the order of operations when evaluating expressions. Evaluate:. 1). 34. 2). 1. 3. 5. 3). 4). 13. 5). Scaffolding. Agenda. Warm Up/Do Now.

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Evaluating Expressions The Order of Operations Lesson 1

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  1. Evaluating Expressions The Order of Operations Lesson 1

  2. Warm Up/Do Now OBJECTIVE: SWBAT indentify and begin to follow the order of operations when evaluating expressions. Evaluate: 1) 34 2) 1 3 5 3) 4) 13 5) Scaffolding Agenda

  3. Warm Up/Do Now OBJECTIVE: SWBAT indentify and begin to follow the order of operations when evaluating expressions. Evaluate: 1) 34 2) 1 3 5 3) 4) 13 5) Scaffolding Agenda

  4. Launch- Marvin’s Trick Marvin the “Amazing Math Magician” has a challenge for you! 3 7 10 15 Hey class, bet you can’t make 75 with the numbers: You can use any operation you like addition, subtraction, multiplication or division, more than once, and in any order you choose. But, you must use all 4 numbers only once. Agenda

  5. Launch- Marvin’s Trick 3 7 10 15 How did you make 75 with the 4 numbers? Agenda

  6. Launch- Marvin’s Trick 75 A way to make using 3 7 10 15 This is a way to write the work you did as one math expression. Expression?????? Numbers and symbols grouped together that show the value of something. Agenda

  7. Explore- The Four Students Problem Marvin challenged four students to evaluate this problem Your task with your partner is to determine how the students obtained their answer. Student’s results Ashley Melinda Support your response with evidence, by listing the operations in the order in which the student did them. Juan Shawn Your group is responsible for 2 or 4 students. Evaluate? Agenda

  8. Discussion Marvin challenged four students to evaluate this problem. Click names Ashley Melinda Juan Shawn All students and summary Online Calculator Next slide Agenda PC Users

  9. PCVersion- Discussion Marvin challenged four students to evaluate this problem. Juan’s Work Shawn’s Work Ashley’s Work Melinda’s Work Ashley’s Work Juan’s Work Melinda’s Work Shawn’s Work Click names Ashley How can we test it? Melinda CALCULATOR Juan Shawn All students summary Online Calculator Next slide Agenda

  10. Discussion Marvin challenged four students to evaluate this problem. Melinda’s Work Click names Ashley Melinda Juan Shawn All students and summary Online Calculator Agenda

  11. Discussion Marvin challenged four students to evaluate this problem. Juan’s Work Click names Ashley Melinda Juan Shawn All students and summary Online Calculator Agenda

  12. Discussion Marvin challenged four students to evaluate this problem. Shawn’s Work Click names Ashley Melinda Juan Shawn All students and summary Online Calculator Agenda

  13. Discussion Marvin challenged four students to evaluate this problem. Ashley’s Work Shawn’s Work Juan’s Work Melinda’s Work Click names Ashley How can we test it? Melinda CALCULATOR Juan Shawn All students and summary Online Calculator Agenda

  14. Resources for Your Notebook The Order of Operations Shawn’s Work 1) 1) Parentheses or Grouping Symbols 2) Exponents 3) Multiplication/Division (Left to Right) 4) Addition/Subtraction (Left to Right) Think back to the warm up. Is there a problem that contained any symbol Shawn didn’t use? Click to open warm up. Agenda

  15. Practice- Partners Directions: Using the Order of Operations, evaluate the following expressions. Let’s do number 1 and 2 together!! • 2) 20 ÷ (6 – 1) 1) • 3) 10 + 23– 5 • 4) 9 + 3 + 9 ÷ 3 • 5) 6 + 10 ÷ 2 – 1 6) 2 + 5 x 6 ÷ 2 Agenda

  16. Practice Directions: Using the Order of Operations, evaluate the following expressions. 1) Scaffolding Agenda

  17. Practice Directions: Using the Order of Operations, evaluate the following expressions. 2) Scaffolding Agenda

  18. Practice Directions: Using the Order of Operations, evaluate the following expressions. 4 8 • 2) 20 ÷ (6 – 1) 1) 15 • 3) 10 + 23– 5 • 4) 9 + 3 + 9 ÷ 3 13 10 • 5) 6 + 10 ÷ 2 – 1 6) 2 + 5 x 6 ÷ 2 17 Agenda

  19. Assessment/Exit Slip Evaluate : 1) 2) 14 3 3) Who is correct? Amy Jamal Woops!! Amy added first Agenda

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