Symmetry
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Geometry - position and direction
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Measurement
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Counting in multiples of 6, 7, 9, 25 and 1000
Multiplying 2 and 3-digit numbers by a 1-digit number
Times tables up to 12 x 12
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Explainer Video
Summary
Symmetry
In a nutshell
A shape is symmetrical if one side is the mirror image of the other. A line of symmetry is a line that cuts a shape exactly in half.
Symmetric figures
Symmetric figures have lines of symmetry. For example, a square has this property - it has four lines of symmetry, as shown below:
A line of symmetry is a line that cuts a shape exactly in half. Below is a table which shows the different shapes and their lines of symmetry:
shape name | properties | diagram |
| Rectangle | lines of symmetry |  |
| Rhombus | lines of symmetry |
 |
| Isosceles triangle | line of symmetry |  |
| Equilateral triangle | lines of symmetry |  |
| Regular hexagon | lines of symmetry |
 |
Completing symmetrical patterns
To complete a symmetrical pattern, you need to reflect it in the line of symmetry and fill in the other side of the pattern.
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Tip: When completing symmetrical patterns, it is useful to imagine the line of symmetry as a mirror.
FAQs - Frequently Asked Questions
How do you complete a symmetrical pattern?
To complete a symmetrical pattern, you need to reflect it in the line of symmetry and fill in the other side of the pattern.
How do you know if a shape is symmetrical?
A shape is symmetrical if one side is a mirror image of the other.
What is a line of symmetry?
A line of symmetry is a line that cuts a shape exactly in half.