1. Symmetry Line Symmetry Rotation (Turn) Symmetry
Creating Rotational Symmetry
Translational Symmetry

2. Starter Questions www.mathsrevision.com Q1. Calculate
Q2. If 1 bar of chocolate costs 65p. How much will
1000 bars cost. Give your answer in £’s.
Q3. Round to 1 decimal place
Q4. Convert to 24 hrs clock

3. Line Symmetry www.mathsrevision.com Learning Intention
Success Criteria
We are learning how to recognise and create line symmetry.
Understand the term line symmetry.
Complete Drawings given the line of symmetry.

4. Line Symmetry www.mathsrevision.com
A line symmetry occurs in a shape if, when the shape is folded over the line the two pieces either side of the line, are exactly the same.

5. How many lines of symmetry do these shapes have ?
Line Symmetry
How many lines of symmetry do these shapes have ?
Equilateral
Triangle (3 lines)
Square (4 lines)

6. How many lines of symmetry do these shapes have ?
Line Symmetry
How many lines of symmetry do these shapes have ?
Isosceles
Triangle (1 lines)
Rectangle (2 lines)

7. How many lines of symmetry do these shapes have ?
Line Symmetry
How many lines of symmetry do these shapes have ?
Kite (1 line)
Rhombus (2 lines)

8. How many lines of symmetry do these shapes have ?
Line Symmetry
How many lines of symmetry do these shapes have ?
Parallelogram
No lines of Symmetry

9. How many lines of symmetry do these shapes have ?
Line Symmetry
How many lines of symmetry do these shapes have ?
Trapezium 2
No line of Symmetry
Trapezium 1 (1 line)

10. How many lines of symmetry do these shapes have ?
Line Symmetry
How many lines of symmetry do these shapes have ?
(2 lines)
Hexagon (6 lines)

11. Draw the other side of the shape so it has line symmetry.

12. Draw the other side of the shape so it has line symmetry.

13. Created by Mr. Lafferty Maths Dept.
Line Symmetry
Now try TJ4+
Ex 6.1
Ch6 (page 35)
12-Apr-18
Created by Mr. Lafferty Maths Dept.

14. Starter Questions www.mathsrevision.com
Q1. Round the following to the first decimal place.
(a) (b)
Q2. What fraction is the green area.
What fraction is the grey area.
Q3. A pencil costs 22p. How much does
a 1000 cost. Put your answer in £’s.

15. Rotation (Turn) Symmetry
Learning Intention
Success Criteria
We are learning what rotational symmetry and its order.
Understand the terms rotational symmetry.
2. State the turn symmetry and order for shapes.

16. Rotation (Turn) Symmetry
Draw the other side of the shape rotated through 180o around the red point.
Order 2 means it looks the same twice as it is rotated through 360o.
This new shape has half-turn symmetry ORDER 2.

17. Rotation (Turn) Symmetry
State the turn symmetry for each and its order.
Square
(¼ turn symmetry)
Order 4
Rectangle
(½ turn symmetry)
Order 2

18. Creating Half-Turn Symmetry
Learning Intention
Success Criteria
We are learning how we can create half-turn symmetry for a shape.
Understand the terms half-turn symmetry.
Draw the other half of a shape such that it has half-turn symmetry.

19. Creating Half -Turn Symmetry
Draw the other side of the shape rotated through 180o around the red point.
The final shape depends on the centre of rotation.

20. Creating Half -Turn Symmetry
Draw the other side of the shape rotated through 180o around the red point.

21. Rotation (Turn) Symmetry
Now try TJ4+
Ex 6.2
Ch6 (page 36)
12-Apr-18
Created by Mr. Lafferty Maths Dept.

22. Starter Questions www.mathsrevision.com Q1. Calculate
Q2. What is the time difference between
8.15am and 1:00pm
Q3.
Q4. (-2) + (-3)
Q5. How many lines of symmetry does
regular hexagon have.

23. Translation (slide) Symmetry
Learning Intention
Success Criteria
We are learning the meaning of Translational (slide) symmetry using tile patterns.
Understand the terms translational, slide congruent and tile.
Identify shapes that tile.
Construct a tile pattern
for shapes.

24. Translation (Slide) Symmetry
Gaps
Gaps
Using Slide Symmetry
Shape tiles
DOES NOT tiles
Gaps between shapes
A shape that tiles can be completely surrounded by congruent shapes WITHOUT leaving any gaps.

25. Translation (Slide) Symmetry
How can you tell if the tiling is complete ?

26. Translation (Slide) Symmetry

27. Translation (Slide) Symmetry
Complete the tiling
Is this the complete tiling ?
No !
Why ?

28. Translation (slide) Symmetry
Write down as many tile patterns as you can
that you see every day.

29. Have you updated your Learning Log ?
Translation (Slide) Symmetry
Now try TJ4+
Ex 6.3
Ch6 (page 38)
12-Apr-18
Created by Mr. Lafferty Maths Dept.