�What Are Fractions?
Fractions are equal parts of whole things.
This is a circle.
1 part of the whole circle
1 part of the whole circle
1 part of the whole circle
1 part of the whole circle
�What Are Fractions?
Fractions can also be parts of collections.
For example:
Fractions in Everyday Life
Gillian broke her cookie into quarters to share with her friends.
Fractions in Everyday Life
I have one-half a glass of milk left.
Fractions in Everyday Life
Jamel played one-half of a game.
Brainstorming Fractions
Working in small groups, brainstorm other ways fractions are used in everyday life.
Report your ideas back to the class.
Think about how fractions are used in:
�Halves
When an object or collection is divided into two equal parts, each part is called a half.
Examples of Halves
Look at the images on the following slides.
As a class, discuss:
What fraction is shown?
How do you know?
There is one-half �of the pizza left; �one-half is gone.
One-half of the triangle is pink.
There is one-half of the sandwich left; one-half is gone.
�Quarters
When an object is evenly divided into four parts, each part is called a quarter.
one quarter
one quarter
one quarter
one quarter
+
=
one whole
+
+
�Quarters
The squares below demonstrate quarters of a shape.
1 box is �one-quarter
2 boxes is two-quarters
3 boxes is three-quarters
4 boxes is one whole
Examples of Quarters
Look at the images on the following slides.
As a class, discuss:
What fraction is shown?
How do you know?
There is three-quarters of the pizza left; �one-quarter is gone.
One-quarter of the �square is yellow.
There is one-quarter �of the cookie left; �three-quarters is gone.
One-quarter of the apple has been cut out.
�Thirds
When an object or collection is divided into three equal parts, each part is called a third.
one third
one third
one third
�Thirds
The rectangles below demonstrate thirds of a shape.
1 box is one-third
2 boxes is two-thirds
3 boxes is one whole
Examples of Thirds
Look at the images on the following slides.
As a class, discuss what fraction is being shown in the picture.
What fraction is shown?
How do you know?
One-third of the pizza is left; two-thirds is gone.
The jug has 100 mL of water in it. It is one-third full.
One-third of the circle is purple.
One-third of the donut is left; two-thirds is gone.
�Fifths
When an object or collection is evenly divided into �five equal parts, each part is called a fifth.
�Fifths
The rectangles below demonstrate fifths of a shape.
1 box is one-fifth
2 boxes is two-fifths
3 boxes is three-fifths
4 boxes is four-fifths
5 boxes is one whole
Examples of Fifths
Look at the images on the following slides.
As a class, discuss what fraction is being shown in the picture.
What fraction is shown?
How do you know?
One-fifth of the �pentagon is orange.
One-fifth of the pizza is gone; four-fifths is left.
One-fifth of the cookie is left; four-fifths is gone.
One-fifth of the star is yellow.
�Eighths
When an object or collection is evenly divided into �eight parts, each part is called an eighth.
Examples of Eighths
Look at the images on the following slides.
As a class, discuss what fraction is being shown in the picture.
What fraction is shown?
How do you know?
One-eighth of the sandwich is left; seven-eighths is gone.
One-eighth of the chocolate bar is left; seven-eighths is gone.
One-eighth of the rectangle is yellow.