A parallelogram is a quadrilateral with two pairs of parallel and equal sides.

The area is the size of the surface and states the number of unit squares needed to completely cover that surface.

The perimeter is the distance around a 2D shape.

Securing understanding of perimeter and area

Maths

Checking understanding of perimeter and area

Finding the perimeter of polygons

Calculating missing lengths with perimeter of polygons

Perimeter with composite rectilinear shapes

Area of a triangle

Using the formula for the area of a triangle

Area of composite rectilinear shapes

Calculating missing side lengths from the area of composite rectilinear shapes

Area of a trapezium

Calculating missing side lengths from the area of a trapezium

Problem solving with perimeter and area

In this unit pupils learn how to derive and use the formula for the area of a triangle and trapezium. In the future unit, this knowledge is called upon to find the volume of different prisms and area of composite shapes

In this unit, pupils explored the relationship between perimeter and area. In particular, they considered whether a shape can have the same area and perimeter value

In this unit pupils investigate how to calculate the area and perimeter of rectilinear shapes, and composite shapes using rectangles and triangles. They will also derive simple area formulae.

Perimeter and area

the quadrilateral with two pairs of parallel and equal sides

What is the minimum information needed to calculate both the area and perimeter of a rectangle?

True or false? Given a value for the perimeter, there is only one possible rectangle you could draw.

A rectangle has an area of 72 units$$^2$$ and a perimeter of 36 units. How long are the length and width?

A parallelogram with four interior angles, each equal to 90 degrees, is called a {{}}

Calculate the area and perimeter of this parallelogram.

True or false? These lines are an example of parallel lines.

An alternative name for a regular triangle is an {{}} triangle

Starting with triangle, put these shapes in order from smallest to greatest number of sides.

How many unit squares are inside the rectangle?

What is the length of the line marked $$k$$?

If two lines are perpendicular then they ______

Securing understanding of perimeter and area

Lesson outcome