Evaluating Expressions The Order of Operations Lesson 1

Warm Up/Do Now OBJECTIVE: SWBAT indentify and begin to follow the order of operations

Launch- Marvin’s Trick Marvin the “Amazing Math Magician” has a challenge for you! Hey

Launch- Marvin’s Trick 3 7 10 15 How did you make 75 with the

Launch- Marvin’s Trick A way to make 3 7 This is a way to

Explore- The Four Students Problem Marvin challenged four students to evaluate this problem Student’s

Discussion Marvin challenged four students to evaluate this problem. Click names Ashley Melinda Juan

PC Version- Discussion Marvin challenged four students to evaluate this problem. Ashley’s Work Ashley’s.

Discussion Marvin challenged four students to evaluate this problem. Melinda’s Work Click names Ashley

Discussion Marvin challenged four students to evaluate this problem. Juan’s Work Click names Ashley

Discussion Marvin challenged four students to evaluate this problem. Shawn’s Work Click names Ashley

Discussion Marvin challenged four students to evaluate this problem. Ashley’s Work Melinda’s Work Click

Resources for Your Notebook The Order of Operations Shawn’s Work 1) Parentheses or Grouping

Practice- Partners Directions: Using the Order of Operations, evaluate the following expressions. Let’s do

Practice Directions: Using the Order of Operations, evaluate the following expressions. 1) Scaffolding 19

Practice Directions: Using the Order of Operations, evaluate the following expressions. 2) Scaffolding 21

Practice Directions: Using the Order of Operations, evaluate the following expressions. 8 2) 20

Assessment/Exit Slip Evaluate : 1) 3 3)Who is correct? Amy 2) 14 Jamal Woops!!

Slides: 19

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Evaluating Expressions The Order of Operations Lesson 1 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 5) 13 Scaffolding 2 4) Agenda

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 5) 13 Scaffolding 3 4) Agenda

Launch- Marvin’s Trick Marvin the “Amazing Math Magician” has a challenge for you! Hey class, bet you can’t make 75 with the numbers: 3 7 10 15 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 4

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

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

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

Discussion Marvin challenged four students to evaluate this problem. Click names Ashley Melinda Juan Shawn All students and summary Online Calculator Next slide PC Users 9 Agenda

PC Version- Discussion Marvin challenged four students to evaluate this problem. Ashley’s Work Ashley’s. Melinda’s Work Melinda’s Juan’s Work Shawn’s Work Click names Ashley Melinda Juan Shawn All students How can we test it? CALCULATOR Juan’s Work Shawn’s Work 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

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

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 14

Discussion Marvin challenged four students to evaluate this problem. Ashley’s Work Melinda’s Work Click names Ashley Melinda Juan Shawn All students and summary How can we test it? CALCULATOR Juan’s Work Shawn’s Work Online Calculator Agenda 15

Resources for Your Notebook The Order of Operations Shawn’s Work 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 16

Practice- Partners Directions: Using the Order of Operations, evaluate the following expressions. Let’s do number 1 and 2 together!! 1) 2) 20 ÷ (6 – 1) 3) 10 + 23 – 5 4) 9 + 3 + 9 ÷ 3 5) 6 + 10 ÷ 2 – 1 6) 2 + 5 x 6 ÷ 2 Agenda 18

Practice Directions: Using the Order of Operations, evaluate the following expressions. 1) Scaffolding 19 Agenda

Practice Directions: Using the Order of Operations, evaluate the following expressions. 2) Scaffolding 21 Agenda

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

Assessment/Exit Slip Evaluate : 1) 3 3)Who is correct? Amy 2) 14 Jamal Woops!! Amy added first Agenda 24