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Transforming lives through learning Scottish Survey of Literacy & Numeracy Support Material Second Level - Fractions Classroom version Produced by Education.

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Presentation on theme: "Transforming lives through learning Scottish Survey of Literacy & Numeracy Support Material Second Level - Fractions Classroom version Produced by Education."— Presentation transcript:

1 Transforming lives through learning Scottish Survey of Literacy & Numeracy Support Material Second Level - Fractions Classroom version Produced by Education Scotland Transforming lives through learning

2 16 X 3X 3

3 Finding a fraction of an amount

4 Strategies Strategy 1 Step 1:

5 Strategies Step 2 Split the pizza into 5 equal parts: Now share 5400 equally between the 5 slices – 1080 on each slice.

6 Strategies

7 Strategies Remove one fifth to leave four fifths: Add to find the answer. Is one of the two strategies easier? Might one strategy be better in one situation and the other for a different problem?

8 Finding a fraction of an amount

9 Strategy 400g Whole Amount 200g 100g 50g 2 Halves 4 Quarters 8 Eighths

10 Strategies Splitting into convenient groups of 4 Counting and shading 1,2,3 and leaving the 4th un-shaded.

11 Strategies Consider though not only shading 3 out of every 4 circles, but also consider shading 3 out of 4 rows

12 Simplifying fractions Suppose we want to simplify the fraction Draw two identical rectangles. Split one into 8 equal parts and the other into 4 equal parts. Shade the same area in each: What fraction of the first rectangle is shaded? What fraction of the second rectangle is shaded?

13 Comparing fractions

14 Comparing fractions Would laying the two rectangles over one another help?

15


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