introducting fractions
TRANSCRIPT
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Fractions
Scary? No!We use fractions every day ……
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Fractions
3
4
Numerator
Denominator
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How many pieces altogether?
Fractions
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10
How many pieces altogether?
Fractions
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10
How many pieces altogether?
FractionsHow many pieces have I got?
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10
How many pieces altogether?
FractionsHow many pieces have I got?
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10
How many pieces altogether?
FractionsHow many pieces have I got?
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10
How many pieces altogether?
FractionsHow many pieces have I got?
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10
How many pieces altogether?
FractionsHow many pieces have I got?
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10
How many pieces altogether?
FractionsHow many pieces have I got?
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10
How many pieces altogether?
FractionsHow many pieces have I got?
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10
How many pieces altogether?
FractionsHow many pieces have I got?
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7
10
How many pieces altogether?
FractionsHow many pieces have I got?
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FractionsColour in the right fraction for each shape
4
7
2
7
6
7
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Fractions4
12
3
8
7
14
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FractionsIdentify right fraction for each shape
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Fractions
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Questions
What fraction of snowmen have green hats?
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Understanding equivalent
fractions
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Are they equivalent fractions?
1
43
12
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Yes they are
equivalent fractions.
1
43
12
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Are they equivalent fractions?
1
32
5
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No, they are not equal.
They are not equivalent fractions.
1
32
5
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Can you work out a
strategy for deciding
whether they are
equal?
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What ever you do to the top number . .
You must do to the bottom number.
1
55
20
divide by 5
divide by 5
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What ever you do to the top number . .
You must do to the bottom number.
9
153
5
multiply by 3
multiply by 3
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Sometimes you might need to work out
equivalent fractions in
three steps.
6
8
48
643
4
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Finding the fraction
of a whole number
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Calculate a fraction of a whole
number
Example :
To find of 201
4
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1
4of 20
so
20 divided by 4
equals 5
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1
4of 20
20 4 5
5
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2
6of 30
30 6 5
10
and another example5 X 2 = 10
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Fractions
Great fun!