fractions. n list at least 3 ways fractions are used outside of the math classroom
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Fractions Fractions
List at least 3 ways fractions are List at least 3 ways fractions are used outside of the math used outside of the math classroomclassroom
SRB page 43SRB page 43
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What is a Fraction?What is a Fraction?
A fraction names a piece of a single A fraction names a piece of a single thingthing– This is This is one-halfone-half of a cookie 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 FractionParts of a Fraction
3
4
= the number of parts
= the total number of parts that equal a whole
Fraction Fraction NotationNotation
1
This is the numerator
This is the denominator
4
A fraction is a number used to name a part of a group or a whole.
The fraction one-fourth is written like this:
The number above the bar is the numerator. The number below the bar is the denominator.
Parts of a FractionParts of a Fraction
3
4
= numerator
= denominator
Fraction Fraction NotationNotation
The fraction can also be written as The fraction can also be written as
1/41/4
Which number is circled?Which number is circled?
3
4 = denominator
Which number is circled?Which number is circled?
3
4
= numerator
Fraction Fraction ModelsModelsFractions can be shown as parts of a circleFractions 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 like¾ looks like
1/43
4 1/4
1/4
¾ looks like¾ looks like
1/43
4 1/4
1/4
¾ looks like¾ looks like
3
4
1/4
1/4
1/4
What fraction of the balls are What fraction of the balls are purple? purple?
3
4
What fraction of the balls are What fraction of the balls are purple? purple?
1
4
What fraction of the balls are What fraction of the balls are purple? purple?
1
6
What fraction of the balls are What fraction of the balls are purple? purple?
4
6
What fraction of the rectangle What fraction of the rectangle is purple? is purple?
4
6
What fraction of the rectangle What fraction of the rectangle is purple? is purple?
2
6
What fraction of the pie is What fraction of the pie is purple? purple?
4
4
What fraction of the pie is What fraction of the pie is purple? purple?
3
4
What fraction of the musical What fraction of the musical instruments have strings? instruments have strings?
2
5
What fraction of the fish have What fraction of the fish have stripes? stripes?
3
5
What fraction of the arrowsWhat fraction of the arrowshit the bullseye? hit the bullseye?
1
3
What fraction of the pins areWhat fraction of the pins areknocked down? knocked down?
3
10
BrainPOPBrainPOP Jr. | Math | Learn about Basic Parts Jr. | Math | Learn about Basic Parts of a Whole of a Whole
Independently do: Fraction ValuesIndependently do: Fraction Values
While waiting complete Math Box While waiting complete Math Box 7.17.1
Then play Fraction Game with a Then play Fraction Game with a partnerpartner
HomeworkHomework
Math Journal Page 185Math Journal Page 185
Mixed NumbersMixed Numbers
A mixed number is a whole A mixed number is a whole number and a fractionnumber and a fraction
Example 1 ½ - can mean you have Example 1 ½ - can mean you have one whole pizza pie and half of a one whole pizza pie and half of a second piesecond pie