Which shape is the odd one out?

Our Objectives Today:

Identify and name quadrilaterals

Classify shapes according to their properties

Quadrilaterals 30th September 2013

What do all Quadrilaterals have in common?

What makes a square a square?

• All side lengths equal

• All angles equal

• Two sets of Parallel lines

• 4 Lines of symmetry

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

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

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

Its a fair cop, Guv!

GUILTY!

Well done!

It wasn’t me!

Innocent.

TRY AGAIN

Whodunnit?

Ask Questions to find the criminal.......

Its a fair cop, Guv!

GUILTY!

Well done!

It wasn’t me!

Innocent.

TRY AGAIN

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