Introduction to Fractions. Small groups: How would you describe a pizza that has some slices...

Introduction to Fractions

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Small groups: How would you describe a pizza that has some slices

missing?

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Fractions

Fractions are parts of a whole

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What if we want to share our grilled cheese?

12

13

14

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Denominator

The denominator is the name for the number on the bottom of a fraction. It is the total number of parts.

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Numerator

The numerator is the top number. This is the number of parts we are dealing with.

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Parts of a set

How many strawberries do we have?

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Fraction Definition Song

I KNOW MY DEFINITIONSI KNOW MY DEFINITIONS

WHEN IT COMES DOWN TO FRACTIONSWHEN IT COMES DOWN TO FRACTIONS

I KNOW MY DEFINITIONS I KNOW MY DEFINITIONSWHEN IT COMES DOWN TO FRACTIONS

WHEN IT COMES DOWN TO FRACTIONSFRACTIONS

PARTS OF WHOLEFRACTIONS

PARTS OF WHOLEDENOMINATOR

BOTTOM NUMBERNUMERATOR

THE TOP NUMBERDENOMINATOR TELLS THE TRUTH

DENOMINATOR TELLS THE TRUTHHOW MANY PARTS THE WHOLE IS DIVIDED INTO

HOW MANY PARTS THE WHOLE IS DIVIDED INTOTHE NUMERATOR TELLS US THIS

Fraction Definitions

THE NUMERATOR TELLS US THISHOW MANY OF THE PARTS WE’RE DEALING WITH

HOW MANY OF THE PARTS WE’RE DEALING WITHPROPER FRACTION

THE TOP NUMBER IS LESS THAN THE DENOMINATORIMPROPER FRACTION

THE TOP NUMBER IS GREATER THAN THE DENOMINATORA MIXED NUMBER GETS A LITTLE MORE ACTION

A MIXED NUMBER GETS A LITTLE MORE ACTIONIT HAS A WHOLE NUMBER RIGHT NEXT TO THE FRACTION

IT HAS A WHOLE NUMBER RIGHT NEXT TO THE FRACTIONEQUIVALENT FRACTIONS HMMM I WONDER

EQUIVALENT FRACTIONS HMMM I WONDERARE FRACTIONS THAT REPRESENT THE SAME NUMBER

ARE FRACTIONS THAT REPRESENT THE SAME NUMBERRECIPRICAL

IS THE MULTIPLICATIVE INVERSE OF A NUMBERINVERSE

IS WHEN YOU FLIP A FRACTION AND THE BOTTOM NUMBER GOES ON TOPI KNOW MY DEFINITIONS

I KNOW MY DEFINITIONS

http://www.brainpop.com/math/numbersandoperations/fractions/



Introduction to Fractions. Small groups: How would you describe a pizza that has some slices...

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