1. Symmetry

2. Objectives At the of this section, teachers should be able to:
Explain how to identify and draw a line of symmetry
Explain how to complete symmetrical figures
Explain how to identify symmetrical figures 

3. Objectives At the of this section, students should be able to:
Identify and draw a line of symmetry
Complete symmetrical figures
Identify symmetrical figures

4. Starter Activity-Symmetrical Painting
Note: Students are provided with paint and papers.
Put drops of different colours on  only half side of the paper and then fold it.

5. Activity 1-Painting
Note: Ask students to unfold their papers. Ask them what they have observed-Discussion

6. Discussion

7. Activity 2
Teachers' Note: Ask students to collect different types of leaves. Ask them to fold one of the leaves into exactly two equal parts. Ask them what they can observe.

8. Activity 2
Teachers' Note: Ask students to unfold the leaf and discuss on what they have observed.
1. Tell the students to stick the leaf in their copybook and draw a dotted line in the middle.
2. Introduce the term “Symmetry” by explaining the meaning of this dotted line.

9. Activity 2
A figure which has line(s) of symmetry is known as a symmetrical figure.

10. Activity 3 Which of these figures is a symmetrical figure?
Teachers note:
Pair up the students. Give each group these two diagrams.
Ask students to cut them off and repeat the steps of folding and unfolding.
Discuss the results together

11. Consolidation Work
Note: Book – Page 87

12. Let’s Practice – Activity 4
Complete the shading of this symmetrical figure.

13. Activity 5
Complete the shape which has one line of symmetry

14. Activity 6
Complete the shape to be able satisfy the line of symmetry

15. Activity 7
Complete the shading to be able satisfy the line of symmetry

16. More than one line of symmetry
Let’s discuss:
Can a shape have more than one line of symmetry?
Let us take a flower.

17. More than one line of symmetry

18. More than one line of symmetry
Try others by yourself 

19. More than one line of symmetry
Two
Three
Four
Five

20. Consolidation Work
Note: Book – Page 87

21. Consolidation Work
A square has…………… line(s) of symmetry. 2 1 4 3 1.

22. Consolidation Work Is this shape a symmetrical figure? Yes No
Explain your answer. 2.

23. Consolidation Work This triangle has…………… line(s) of symmetry. 2 1 33 3.

24. Consolidation Work Match the following: 4. 4 lines of symmetry
No line of symmetry
1 line of symmetry
5 lines of symmetry

25. How many lines of symmetry does this shape have?
Consolidation Work
How many lines of symmetry does this shape have? 5.

26. Consolidation Work
Note: Book – Page 88

27. Which shape is symmetrical?
Consolidation Work
Which shape is symmetrical? 6. A B C D

28. The dotted line is a line of symmetry.
Consolidation Work
The dotted line is a line of symmetry. 7.
True A
False B

29. Consolidation Work Which letter is not symmetrical? 8. A. S B. E C. T

30. Consolidation Work
Complete the following words, for which the blue lines are lines of symmetry: 9.

31. Consolidation Work
Arrange the following in the table on the next slide.
10.

32. Consolidation Work