Coordinates and Position
Grids are very useful tools when pinpointing a position.There are a few main
things about grids that you need to know first.
We use coordinates to help us to find an exact spot on a grid. They are made
up of two numbers – the first number will tell us the position horizontally and
the second number will tell us the position vertically.
This is a handy phrase to help you remember which way around the
Along the corridor, then up the stairs’
So, for example, if we have the coordinate (4,9), it would mean that we need
to move 4 spaces along the x axis of the grid, then move upwards 9 boxes.
We can also have negative coordinates, which would mean moving from
right to left or downwards, depending on whether it is a horizontal or vertical
coordinate – we can draw negative y and x axes for these.
Lines on a grid
1. Lines which cross one another are called intersecting lines.
2. Lines which cross each other at a right angle are called
3. Lines which are always the same distance apart and will
never cross are called parallel lines directions on a grid can
be given in the form of compass points.