1©Evergreen Public Schools 2010

7/15/10

Teacher NotesThis lesson is an alternative to section 5-6 ReciprocalsMethodology: Multiply by common denominator to remove fractions.

Day 1 – same denominatorsDay 2 – different denominators

Good day for whiteboards.

2©Evergreen Public Schools 2010

• I can solve equations in one variable that contain fractions.

What would you do to solve the

equation½x – 1 = ¾x +

2?

3©Evergreen Public Schools 2010

LaunchLaunchSolve

You solved problems like

this yesterday. x3 −

76

=2

4©Evergreen Public Schools 2010

5©Evergreen Public Schools 2010

Use Tara’s method to solve.

1)

2)

Solve with a Partner

2x−3 =

12

12x−5 =

13

Why is this one different?

6©Evergreen Public Schools 2010

©Evergreen Public Schools 2010

6

Team Practice3)

25x−1 =

35

x2 +

14

=x6

13 4x−3( )=5

x3 +

x −25

=6

4)

5) 6)

7©Evergreen Public Schools 2010

DebriefTo solve the equation

Nick said he would multiply by 24.Mitch said he would multiply by 12. Which method works?

x3 −

12

=54

8©Evergreen Public Schools 2010

5

3

12

4

Did you hit the target? I can solve equations in one variable that contain fractions.

Rate your understanding of the target from 1 to 5.5 is a bullseye!

9©Evergreen Public Schools 2010

Practice

Practice 11.2 Equations with Fractions

10©Evergreen Public Schools 2010

Ticket OutSolve

x3 2=

x5