Introducting fractions

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Fractions Scary? No! We use fractions every day ……

Transcript of Introducting fractions

Page 1: Introducting fractions

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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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?

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43

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Yes they are

equivalent fractions.

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43

12

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Are they equivalent fractions?

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32

5

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No, they are not equal.

They are not equivalent fractions.

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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.

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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.

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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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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!