The document identifies and defines different types of quadrilaterals: - A square has four equal sides and four right angles. It has four lines of symmetry. - A rectangle has two sets of parallel sides and four right angles. It has two lines of symmetry. - A rhombus has four equal sides but only one set of parallel sides. It has two lines of symmetry. - A parallelogram has two sets of parallel sides and two pairs of equal angles. It has two lines of symmetry.

1. Which shape is the odd one out?

2. Our Objectives Today:
Identify and name quadrilaterals
Classify shapes according to their properties
Quadrilaterals 30th September 2013

3. What do all Quadrilaterals have in common?

4. What makes a square a square?
• All side lengths equal
• All angles equal
• Two sets of Parallel lines
• 4 Lines of symmetry

5. Exercise 1
A square has four lines of __________
A _____ has two sets of parallel sides, 2 matching acute and obtuse
angles
A _ _ has two right angles, only one set of parallel sides and no
lines of symmetry
A ________________ has four equal angles and two pairs of matching sides,
and two lines of symmetry
A _____________ is a special parallelogram where all of the sides and angles
are the same length
A ________________ has only one line of symmetry, two sets of equal sides
and only one set of matching angles
symmetry
parallelogram
right trapezium
rectangle
rhombus
kite

6. Exercise 2 – True or False
All Quadrilaterals have at least 1 line of symmetry.
All quadrilaterals have at least 1 pair of matching angles
Trapeziums have only one pair of parallel sides
A square could also be classified as a rectangle
All shapes with 4 right angles have two lines of symmetry
The diagonals of a rectangle are always the same length
True
True
False
True
False
False

7. Whodunnit?
Follow the clues to find the criminal.......
The criminal has at least one line of symmetry
The criminal has more than two matching angles
The criminal does not have all sides equal

8. Its a fair cop,
Guv!
GUILTY!
Well done!

9. It wasn’t me!
Innocent.
TRY AGAIN

10. Whodunnit?
Ask Questions to find the criminal.......

11. Its a fair cop,
Guv!
GUILTY!
Well done!

12. It wasn’t me!
Innocent.
TRY AGAIN

13. Word Wall
Choose a keyword used in today’s lesson.
Nominate another classmate to tell us what it means!
Symmetry
Acute
Obtuse
Quadrilateral
Parallel
Diagonal Square
Right Angle
Opposite
Adjacent