1. Grid references on OS maps

2. How to give four figure grid references

3. A grid reference is a way of giving a position on a map

4. Grid line numbers are at the top and bottom
So this is Easting 35
Grid lines called Eastings are from top to bottom
Say it as ‘three five’, not as thirty five.

5. Grid lines from side to side are called Northings
Grid line numbers are along both sides 27 26 25 24 23 22 27 26 25 24 23 22
Say it as ‘two four’, not twenty four
So this is Northing 24

6. 27 26 25 24 23 22 27 26 25 24 23 22 A
What is the four figure grid reference for this square?

7.
Find the line along the left of the square. A
This is Easting 34

8. Find the line along the bottom of the square.27 26 25 24 23 22 27 26 25 24 23 22
This is Northing 25 A

9. The four figure grid reference is 3425A
Easting 34
Northing 25
Say it as ‘three four two five’

10. Remember Find the square Look at the line on its left (Easting)
Find its number from the top or bottom
Look at the line along its bottom (Northing)
Find its number from either side
Write the Easting number, then the Northing number

11. What are the four figure grid references for the squares with these symbols? 27 26 25 24 23 22 27 26 25 24 23 22
3124
3223
3525
3522
3325
All right?
Some wrong?
Double click icons

12. How to give a
six figure grid
reference

13.
The church is in square 3224, but where exactly is it? 27 26 25 24 23 22 27 26 25 24 23 22

14. 27 26 25 24 23 22 27 26 25 24 23 22
It is nearer to 33 than to 32
But how ‘near’ is nearer?
We need to look more closely.
It is nearer to 24 than to 25

15. Look closer at one grid square

16. 328
330
320
250 25
Draw lines between the main grid lines
A six figure reference at
243
Say it as ‘three two eight, two four three’
240 24 32 33

17. Remember Find the point in the square
Find the four figure grid reference
See how far the point is from the line on the left of the square to the line on the right
See how far the point is from the line along the bottom of the square to the line along the top

18. Where are these symbols?
320
330
250
250
325243
326247
327240
330248
322246
240
240
All right?
Some wrong?
320
330
Double click icons

19. Remember 32
This line first
3224 24
Then this line

20. Remember 32
327
This line first
246
Then this line 24
Church at