# Solving problems with coordinates

## Home learning focus

In this lesson you will learn how to plot coordinates. This is the first of four lessons this week, increasing in difficulty.

This lesson includes:

- one video
- three interactive activities

# Learn

Coordinates are plotted on a pair of axes and show the exact position of a point.

Each axis is labelled with a scale of numbers, like a number line. The values can be positive or negative.

(0,0) is the point where both axes cross. It is called the origin. The position of a coordinate is shown using an X.

There are two axes:

**The x axis is left to right (horizontal).**

**The y axis is bottom to top (vertical). ** You can remember this by thinking that the letter 'y' has a longer, vertical tail.

Here the point (2,4) is shown. (2,4) means the coordinates are two units to the right in the x-direction and four units up in the y-direction.

**The x axis number is always first.** You can remember this by saying "along the corridor then up the stairs"

Coordinate points are always written in brackets, with a comma between the two numbers.

**Plotting multiple coordinates**

A list of four coordinates can be used to represent the corners of a shape.

For example, (2,3), (3,0), (0,-1) and (-1,2) when plotted and joined together, make a square.

Watch the video below from BBC Bitesize on plotting coordinates and then finding the centre of the shape that has been drawn.

## Activity 1

**Coordinates and shapes**

Print out the activity below from Teachit and answer the questions on coordinates. Alternatively draw the coordinates out on squared paper.

The answers are at the bottom of the worksheet.

# Practise

## Activity 2

**Missing coordinates**

Try this worksheet from Teachit. Either print it out or draw the shapes out on squared paper - there might be some in your Maths workbook from school.

The answers are at the bottom of the worksheet.

## Activity 3

**Coordinates quiz**

Test your knowledge with this quick quiz.

# There's more to learn

Have a look at these other resources around the BBC and the web.