FractionsFractions

Grade 5 Grade 5

Lesson ObjectivesLesson Objectives 6.B.1.c Identify the greatest common factor6.B.1.c Identify the greatest common factor 6.A.1.c Identify and determine equivalent 6.A.1.c Identify and determine equivalent

forms of proper fractionsforms of proper fractions

3.A.1.a Use technology tools, including 3.A.1.a Use technology tools, including software and hardware, from a range of software and hardware, from a range of teacher-selected options to learn a new content teacher-selected options to learn a new content or reinforce skillsor reinforce skills

Unitedstreaming Video ClipUnitedstreaming Video Clip

There is a great video clip that can be used There is a great video clip that can be used with this lesson. To use it:with this lesson. To use it:

1.1. Log into UnitedstreamingLog into Unitedstreaming– www.unitedstreaming.com

2.2. Do a search for this Movie:Do a search for this Movie:– Zany World of Basic Math, The, Module 7: Fraction

Basics . Standard Deviants

3.3. Then choose this clip:Then choose this clip:– parts of a fractionparts of a fraction

What is a Fraction?What is a Fraction?

Zany World of Basic Math, The, Module 7: Fraction Basics . Standard Deviants. 2001.unitedstreaming. 19 June 2007 <http://www.unitedstreaming.com/>

FactorsFactors Numbers that divide Numbers that divide

evenly into another.evenly into another.

Factors of 24 are: Factors of 24 are:

1, 2, 3, 4, 6, 8, 12, and 24. 1, 2, 3, 4, 6, 8, 12, and 24. 1 x 24 2 x 12 3 x 8, 4 x 6

Greatest Common FactorGreatest Common Factor The greatest common factor is The greatest common factor is

the largest factor between two the largest factor between two numbers.numbers.

12 = 1, 2, 3, 4, 6, 1218 = 1, 2, 3, 6, 9, 18

What is the Greatest What is the Greatest Common Factor?Common Factor?

6 = 1, 2, 3, 6 18 = 1, 2, 3, 6, 9, 15

Unitedstreaming Video ClipUnitedstreaming Video Clip

There is a great video clip that can be used There is a great video clip that can be used with this lesson. To use it:with this lesson. To use it:

1.1. Log into UnitedstreamingLog into Unitedstreaming– www.unitedstreaming.com

2.2. Do a search for this Movie:Do a search for this Movie:– Zany World of Basic Math, The, Module 7: Fraction

Basics . Standard Deviants

3.3. Then choose this clip:Then choose this clip:– reducing fractionsreducing fractions

Simplify FractionsSimplify Fractions

Zany World of Basic Math, The, Module 7: Fraction Basics . Standard Deviants. 2001.unitedstreaming. 19 June 2007 <http://www.unitedstreaming.com/>

How to Find the Simplest Form How to Find the Simplest Form of a Fractionof a Fraction

Find the greatest common factor of the Find the greatest common factor of the numerator and the denominator and numerator and the denominator and divide both the numerator and the divide both the numerator and the denominator by that number.denominator by that number.

1218

23÷

66 =

Simplify or Reduce This Simplify or Reduce This FractionFraction

921

37

÷ 33

=

Simplify or Reduce This Simplify or Reduce This FractionFraction

1435

25

÷ 77

=

Simplify or Reduce This Simplify or Reduce This FractionFraction

312

14

÷ 33

=

Simplify or Reduce This Simplify or Reduce This FractionFraction

924

38

÷ 33

=

Simplify or Reduce This Simplify or Reduce This FractionFraction

428

17

÷ 44

=

Simplify or Reduce This Simplify or Reduce This FractionFraction

1520

34

÷ 55

=

Simplify or Reduce This Simplify or Reduce This FractionFraction

912

34

÷ 33

=

Exit ticketExit ticket

On a half sheet of paper, simplify the On a half sheet of paper, simplify the following fractions. Show all of your work.following fractions. Show all of your work.

88

2424

1212

3636