Fractions

List at least 3 ways fractions are used
outside of the math classroom
SRB page 43

iSRB
What is a Fraction?
A fraction names a piece of a single thing
– This is one-half of a cookie
A fraction names a part of a group of things
– One-third or 1 out of 3 cookies are chocolate chip
Parts of a Fraction
3
4
= the number of parts
= the total number of
parts that equal a whole
Fraction Notation
A fraction is a number used to name a part of a group or
a whole.
The number above the bar is the numerator.
The number below the bar is the denominator.
The fraction one-fourth
is written like this:
This is the
denominator
This is the
numerator
1
4
Parts of a Fraction
3
4
= numerator
= denominator
Fraction Notation

The fraction can also be written as
1/4
Which number is circled?
3
4
= denominator
Which number is circled?
3
4
= numerator
Fraction Models
Fractions can be shown as parts of a circle
Here is 1/4 of the circle
1 out of 4 parts is shaded in, so we say
one-fourth
Or as part of rectangle
Here is 3/4 of the rectangle
3 out of 4 parts is shaded in, so we say three-fourths
¾ looks like
3
4
1/4 1/4
1/4
¾ looks like
1/4
3
4
1/4
1/4
¾ looks like
3
4
1/4
1/4
1/4
What fraction of the balls are
purple?
3
4
What fraction of the balls are
purple?
1
4
What fraction of the balls are
purple?
1
6
What fraction of the balls are
purple?
4
6
What fraction of the rectangle is
purple?
4
6
What fraction of the rectangle is
purple?
2
6
What fraction of the pie is purple?
4
4
What fraction of the pie is purple?
3
4
What fraction of the musical
instruments have strings?
2
5
What fraction of the fish have
stripes?
3
5
What fraction of the arrows
hit the bullseye?
1
3
What fraction of the pins are
knocked down?
3
10

BrainPOP Jr. | Math | Learn about Basic
Parts of a Whole

Independently do: Fraction Values

While waiting complete Math Box 7.1

Then play Fraction Game with a partner
Homework

Math Journal Page 185
Mixed Numbers
A mixed number is a whole number and
a fraction
 Example 1 ½ - can mean you have one
whole pizza pie and half of a second pie
