Year 2 Summer Term Week 11 Lesson 4

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Presentation transcript:

Year 2 Summer Term Week 11 Lesson 4 Fractions Year 2 Summer Term Week 11 Lesson 4

Today we will be learning to: recognise and find simple fractions recognise a half or a quarter know that two halves or four quarters make a whole and that two quarters make a half understand that doubling reverses halving.

Mental Activity Halving and doubling

1 27 15 44 60 30 23 540 6 21 9 82 11 8 10 22 13 20 34 Choose a number. Halve or double it.

Give me a number less than 11. Double it. Double it again. How many times can you double it?

Main Activity Today we are going to work on fractions.

Fractions are equal parts. What are fractions? Fractions are equal parts.

If you cut an object into equal slices each slice will be a fraction.

What fraction is shaded? _ 4 1

What fraction is shaded? or _ 2 1 4

What fraction is shaded? _ 4 3

What fraction is shaded? 1 whole

How can you find half of a number of objects?

How can you find half of a number of objects?

Half of this bag of sweets is three sweets. How many sweets in the bag?

Half of this bag of sweets is three sweets. How many sweets in the bag?

Doubling reverses halving. Top Tip Doubling reverses halving.

Half of this bag of sweets is five sweets. How many sweets in the bag?

Half of this bag of sweets is five sweets. How many sweets in the bag?

Half of this bag of sweets is four sweets. How many sweets in the bag?

Half of this bag of sweets is four sweets. How many sweets in the bag?

Group Work Find the total of a number of objects when shown one half or one quarter of the whole amount. Use mental strategies.