Maths Graad 2

88

Symmetry

If you divide the shell down the middle, the left side looks just like the right side. The tree is symmetrical along its vertical half.

If you divide the shell from left to right, then the top and the bottom do not look alike. The shell is asymmetrical or not symmetrical along its horizontal half.

Look at the shapes below and underline whether they are symmetrical or are not symmetrical. Draw their lines of symmetry on them:

Explain your answer: Explain your answer:

Vertical line Horizontal line

The butterfly is / is not symmetrical.

The cloud is / is not symmetrical.

A shape or object is said to be symmetrical when a line can

be place halving it into two equal parts that mirror one another. Demonstrate symmetry by folding a piece of paper in half, opening it, applying paint to one side, folding it again f lat and then by opening it, again. The paint on each half of the page should mirror the other, in a symmetrical way.

a

GR2_ENG_B2_2013.indb 88 2013/04/02 3:53 PM

Maths Graad 2

89

List 3 symmetrical and 3 asymmetrical (not symmetrical) things in your class. Draw each one in a box.

1.

2.

3.

List 3 symmetrical items from nature and explain why each is symmetrical. Then draw it. Add its line of symmetry. The first one has been done for you.

Symmetrical Asymmetrical

1. circle§

2.

3.

When divided equally in half, the two halves are mirror images of one another

b

c

1

2

3

1

2

3

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Maths Graad 2

90

Complete the picture of the cup and saucer on the right- hand side of its line of symmetry:

Underline the correct option: this is vertical/horizontal symmetry.

Underline the correct option: this is vertical/horizontal symmetry.

Complete the picture of the flower on the top half of the line of symmetry:

Space and Shape

Recognises and draws line of symmetry in 2-D geometrical and non-geometrical shapes.

CAPSGrade 2 Term 4

d

e

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