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© Boardworks Ltd 20111 of 13 This icon indicates the slide contains activities created in Flash. These activities are not editable. For more detailed instructions,

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Presentation on theme: "© Boardworks Ltd 20111 of 13 This icon indicates the slide contains activities created in Flash. These activities are not editable. For more detailed instructions,"— Presentation transcript:

1 © Boardworks Ltd 20111 of 13 This icon indicates the slide contains activities created in Flash. These activities are not editable. For more detailed instructions, see the Getting Started presentation. This icon indicates teacher’s notes in the Notes field.

2 © Boardworks Ltd 20112 of 13 Quadrilaterals

3 © Boardworks Ltd 20113 of 13 Area formulae

4 © Boardworks Ltd 20114 of 13 Area calculations

5 © Boardworks Ltd 20115 of 13 The area of a parallelogram

6 © Boardworks Ltd 20116 of 13 The area of a triangle

7 © Boardworks Ltd 20117 of 13 The area of a trapezium

8 © Boardworks Ltd 20118 of 13 Finding the area of irregular polygons

9 © Boardworks Ltd 20119 of 13 Rectangle perimeters

10 © Boardworks Ltd 201110 of 13 Hectare forests 1 hectare = 10000 m 2 Do each of the forests below cover an area of one hectare? What are the perimeters? 250 m 60 m 200 m 20 m 40 m 100 m 80 m 50 m 25m 75 m 50 m

11 © Boardworks Ltd 201111 of 13 Shapes made from rectangles

12 © Boardworks Ltd 201112 of 13 Recognizing formulae

13 © Boardworks Ltd 201113 of 13 This Chinese puzzle is made from 7 shape pieces that fit together to make a square with sides of 16 cm. The intersections are all evenly spaced. What are the areas of the individual shapes? Tangram


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