fractions lesson 1 introduction
TRANSCRIPT
WHAT IS A FRACTION?•When an object is divided into a number of equal parts then each part is called a fraction
•Therefore, a fraction is a part of a whole.
Types of FractionsA PROPER FRACTION is a fraction whose value is less than 1 (numerator smaller than denominator)
An IMPROPER FRACTION is a fraction whose value is greater than or equal to 1 (numerator greater than or equal to denominator)
A MIXED NUMBER is a number whose value is greater than 1 made up of a whole part and a fraction part
Examples of the three types of fractions
2
3
Numerator
Parts of a fraction
Denominator
DenominatorThe denominator says how many equal parts in the whole object
1
22 equal parts
How many equal parts are there in this shape?
What is the denominator of this fraction? Why?
4
Find the denominators of these fractions
4 3
2 8
Draw what you think these fractions look like.
1
6
1
3
1
4
1
10
So, the denominator of a fraction tells us…
1
2?The number of parts that the whole
is divided into!
NumeratorThe numerator says how
many parts from the whole
1
21 part is coloured in
How many equal parts are coloured in in this shape?
What is the numerator of this fraction? Why?
3
Find the numerator for these fractions
3 2
1 5
Draw what you think these fractions look like.
2
6
1
3
3
4
9
10
So, the number on the top of a fraction tells us…
1
2?
The number of parts from the whole
The numerator tells us…
2 3
the number of parts from the whole
The denominator tells us…
the number of parts the whole is divided into
Find the fraction of these shapes
64
41
32
96
•Bassie and I ordered a large pizza. The large pizza is cut into 8 (equal) slices. If Bassie ate 3 slices, how much of the pizza did he eat?
Pizza Problems
Classwork and Homework•Page 1 and 3 of the workbook is classwork. You have 8 minutes to complete both pages then we will mark it.
•Page 2 of the workbook is homework