opening activity: simplify using with like terms – no calculator

Opening Activity:Opening Activity:Simplify using with Like Terms – Simplify using with Like Terms – No calculatorNo calculator

Stand up/Hands up/Pair upStand up/Hands up/Pair up

Decide who is partner A Decide who is partner A and who is partner B.and who is partner B.

Partner A will go first – they Partner A will go first – they will answer the question will answer the question while Partner B listenswhile Partner B listens

Next Partner B will repeat Next Partner B will repeat what Partner A answer was.what Partner A answer was.

Stand up/Hands up/Pair upStand up/Hands up/Pair upContinued…..Continued…..

Partner A: What does it Partner A: What does it mean to simplify like mean to simplify like terms terms

Partner B: summarize what they Partner B: summarize what they said- including what their name said- including what their name is!is!

Now partner B: answer the same Now partner B: answer the same question, then A summarizesquestion, then A summarizes

Stand up/Hands up/Pair upStand up/Hands up/Pair upContinued…..Continued…..

Partner B: What would be Partner B: What would be a common mistake a common mistake students makestudents make

Partner A: summarize what they Partner A: summarize what they said- including what their name said- including what their name is!is!

Now partner A: answer the same Now partner A: answer the same question, then B summarizesquestion, then B summarizes

Our First Vocabulary WordOur First Vocabulary Word

Like terms!!Like terms!!

Any questions???Any questions???

Homework from last night – check Homework from last night – check answers!answers!

Now lets take LG#1 QuizNow lets take LG#1 Quiz Now lets begin LG#2 – math can be Now lets begin LG#2 – math can be

confusing!!confusing!!

Video Video

abottcostello.flv

ObjectiveObjective

All All studentsstudents will begin to understand will begin to understand (level 2) how to solve a (level 2) how to solve a multi-step multi-step equation.equation.

Distributive PropertyDistributive Property

FractionsFractions

Like termsLike terms

Algebraic Equations

-20-20

10x = 6010

4x +6x + 20 = 80( )10x + 20 = 80

10

x = 6

Algebraic Equations

-12-12

5x = 805

3x + 2x + 20 - 8 = 92

5x + 12 = 92

5

x = 16

( ) ( )

Algebraic Equations

-12-122x + 12 =122

2

6x + 15 = 125 + 4x

6x – 4x + 12 = 122 + 4x – 4x

22x = 110

( ) ( )

X = 55

( )

10x – 3x -12 = 4x – 9x + 48

Algebraic Equations

Distributive Property

7x - 12 = -5x + 48

2(5x – 6) – 3x = 4(x + 12) – 9x

10x – 12 - 3x = 4x + 48 – 9x

( )

7x + 5x - 12 = 48

12x - 12 = 48

( )

12 12

7x + 5x - 12 = 48 12x - 12 = 48

+12+12

12x = 60

X = 5

Algebraic Equations

Distributive Property

73

52

x

Important!!! How does this problem Important!!! How does this problem look different!!look different!!

The equal sign is the door…who The equal sign is the door…who goes out the door first?goes out the door first?

73

52

x

733

523

x

The work:

2152 xThe result:

Turn to your shoulder partner and Turn to your shoulder partner and discuss the differences between discuss the differences between

these two equationsthese two equations

63

2

x 743

x

Reflect on ObjectiveReflect on Objective

All All studentsstudents will begin to understand (level will begin to understand (level 2) how to solve a 2) how to solve a multi-step equation.multi-step equation.

Are you ready to practiceAre you ready to practice??????

Little HarderLittle Harder

What is a consecutive Integer?What is a consecutive Integer? What is a consecutive odd integer?What is a consecutive odd integer? What is a consecutive even integer??What is a consecutive even integer??

What are three consecutive integers that add up What are three consecutive integers that add up to 15?to 15?

What are two consecutive odd integers that the What are two consecutive odd integers that the sum is 20?sum is 20?

Name two consecutive even integers that add up Name two consecutive even integers that add up to -6.to -6.