How to Measure Perimeter and Area Perimeter is the length of all the sides of a shape put together.

Area is the amount of surface area INSIDE all of the sides of the shape. To find the area of a square or rectangle, you just multiply the WIDTH by the LENGTH. When you write the answer, you have to measure in square cm, square m or square km. We do this because we need to imagine covering the surface with squares of the same size, in the same unit as the length and width. For example, I have a rectangle that has sides that are 4cm and 6cm long.So my area is the L x W which is 4 x 6. The answer is 24 square centimetres. I would need 24 little cm squares to cover the whole shape.

It is important to write square cm with a little floating two, see below.

You would then write square metres as m2 and square kilometres as km2.

The number 2 is a clue that area uses TWO dimensions, those being length and width.

The length and width can sometimes be called height and breadth.

Poster about calculating the area of triangles and to help your students to remember to use the height, not the slope, and divide it by half. Download the whole set for FREE at http://www.tes.co.uk/teaching-resource/Ks2-Area-of-Triangles-Poster-6322428/

Area of a Parallelogram

Image result for area of a parallelogram worksheet

It is really important to remember these CONVERSION FACTS

Using a ruler - activity

Another using a ruler activity

Comparing lengths - activity

Measurement games- 3 levels

Johnnie's Maths Games - LENGTH PAGE

Another game with 3 levels - ABCYA

Definition of a Hectare

How to Measure Perimeter and Area

Perimeter is the length of all the sides of a shape put together.

Area is the amount of surface area INSIDE all of the sides of the shape.To find the area of a square or rectangle, you just multiply the WIDTH by the LENGTH.When you write the answer, you have to measure in square cm, square m or square km. We do this because we need to imagine covering the surface with squares of the same size, in the same unit as the length and width.For example, I have a rectangle that has sides that are 4cm and 6cm long.So my area is the L x W which is 4 x 6. The answer is 24 square centimetres. I would need 24 little cm squares to cover the whole shape.It is important to write square cm with a little floating two, see below.

You would then write square metres as m2 and square kilometres as km2.

The number 2 is a clue that area uses TWO dimensions, those being length and width.

The length and width can sometimes be called height and breadth.

Area of a Parallelogram