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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
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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 = the number of parts 4 = 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 numberabovethe bar is thenumerator. The numberbelowthe bar is thedenominator. This is the numerator The fraction one-fourth is written like this: 1 4 This is the denominator
Parts of a Fraction 3 = numerator 4 = denominator
Fraction Notation • The fraction can also be written as 1/4
Which number is circled? 3 4 = denominator
Which number is circled? 3 = numerator 4
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 1/4 3 4 1/4
¾ looks like 1/4 3 1/4 4 1/4
¾ looks like 1/4 1/4 3 4 1/4
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