Complete a symmetrical pattern | Maths | Quizalize & Oak National Academy

Starter quiz

How many equal sides and equal angles does an isosceles triangle have?
- 0
- 1
- 2 ✓
- 3
Complete the sentence. This triangle is __________ .
- an equilateral triangle.
- a right-angled isosceles triangle.
- a right-angled scalene triangle. ✓
__________ triangles have 3 equal sides and 3 equal angles.
- equilateral ✓
- scalene
- iososceles
This shape is symmetrical. One half of the shape is a __________ of the other side.
- copy
- reflection ✓
- match
A shape has been folded in half. Which shape is it?
Which of the shapes are symmetrical?
- A
- B
- C ✓
- D ✓

Exit quiz

Complete the sentence. When a shape can be folded in half and both sides are the same, the line where you folded is called the _________
- parallel line.
- perpendicular line.
- line of symmetry. ✓
Which of the patterns is symmetrical?
- A
- B ✓
- C
What shape would go in this box to make the pattern symmetrical?
- square ✓
- triangle
- hexagon
What shape is missing from this symmetrical pattern?
- circle
- trapezium ✓
- triangle
- square
True or false. Sam has created a symmetrical pattern.
- True
- False ✓
What shape should be added to make this pattern symmetrical?
- circle
- square ✓

Worksheet

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Presentation

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Lesson Details

Key learning points

The mirror line shows where a mirror is placed.
Patterns are symmetrical when they are exactly the same on each side of the mirror line.
When placing a mirror on the line of symmetry, the image seen is the same as the other half of the symmetrical pattern.
The pattern will be the same distance from the mirror line on both sides.

Common misconception

Children might spot the unit of repeat and draw a repeating pattern rather than a symmetrical pattern.

Allow children to fold and unfold painted patterns on the mirror line to see where each part of the pattern would be reflected. Printing is a great tool to create symmetrical patterns.

Keywords

Symmetrical - When a shape has a line of symmetry, it can be described as symmetrical.
Mirror line - Another term for a line of symmetry. If you were to fold a shape on its line of symmetry, both halves would match exactly.
Line of symmetry - If you were to fold a shape on its line of symmetry, both halves would match exactly.