WALA: Quadrilaterals

Key vocabulary: Quadrilateral, four sides, equal, rhombus, square, parallelogram,

trapezium

What is a quadrilateral?

A quadrilateral is a shape with four

sides.

Quad = four

Lateral = sides

The lines indicate that the shape has equal sides.

A rectangle is a four sided shape where every angle is a

right angle.

The opposite dies a parallel and equal of length.

A rhombus is a four sided shape where all the sides have equal length.

The opposite sides are parallel and the opposite angles are also equal.

The opposite sides are parallel and equal of length .

The diagonals also meet at a right angle in

the middle.

A rhombus is sometimes called a diamond or a

rhomb.

A square has equal sides and every angle is a right angle.

The opposite sides are parallel.

A square can also be a rectangle (as a rectangle is a shape

where every angle is a right angle) and a rhombus (as a

rhombus has all sides an equal length).

Angles (a) are

the same and

angles (b) are

the same.

A parallelogram has four sides.

The opposite sides are parallel and

equal in length.

The opposite angles are also equal.

A trapezium has four sides.

One pair of opposite sides are parallel.

An isosceles trapezium has left and right sides of

equal length that join at the base and also have

equal angles.

How did you know which shape was which?

WALA: Lines of symmetry

Key vocabulary: symmetry

What is symmetry?

Something is symmetrical when it is the same on

both sides. A shape has symmetry if a central

dividing line (a mirror line) can be drawn on it, to

show that both sides of the shape are exactly the

same.

Find and draw lines of symmetry on these shapes (there may be more than one):

Find and draw lines of symmetry on these shapes (there may be more than one):

Which ones have more than one line of symmetry?

WALT: Complete a symmetric figure

Key vocabulary: symmetry, symmetric

Which was the hardest pattern to make symmetrical? Why?

The final lesson this week is to go onto TTRockstars and practise on all the

different game modes for about 30 minutes (or longer if you wish) and then

complete a Soundcheck.