Fractions

n List at least 3 ways fractions are used outside of the math classroom

SRB page 43 n iSRB 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 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 Fraction 3 4 = numerator = denominator

Fraction Notation n The fraction can also be written as 1/4 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 1/4 3 4

¾ looks like 1/4 3 4

¾ looks like 3 4 1/4

What fraction of the balls are purple? 3 4

1 4

1 6

4 6

What fraction of the rectangle is purple? 4 6

2 6

What fraction of the pie is purple? 4 4

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

n BrainPOP Jr. | Math | Learn about Basic Parts of a Whole BrainPOP Jr. | Math | Learn about Basic Parts of a Whole BrainPOP Jr. | Math | Learn about Basic Parts of a Whole

n Independently do: Fraction Values n While waiting complete Math Box 7.1 n Then play Fraction Game with a partner

Homework n Math Journal Page 185

Mixed Numbers n A mixed number is a whole number and a fraction n Example 1 ½ - can mean you have one whole pizza pie and half of a second pie