1. Six-figure grid references www.geointeractive.co.uk 573287 548284

2. 3435 29 Six-figure grid references are used to locate objects or places within a grid square and so are much more accurate than four-figure grid references. In order to use six-figure grid references, you need to use the numbers on the grid lines plus an estimate of where an object is located within the grid square. Six-figure grid references 28 In this example, the tree symbol is located at 344286. Let’s see how that works in a bit more detail….

3. Six-figure grid references 34 28 29 35 The first task is to give the four-figure grid reference of the square. This is: 3428 Now imagine the bottom and side of the grid square divided into tenths. CLICK me The tree is located 4 tenths of the way along the bottom of the square. 4 So we add a 4 to our grid reference. 4 The tree is located 5 tenths of the way up the side of the square. So we add a 5 to our grid reference. 5 5 The six-figure grid reference is 344285

4. Six-figure grid references Time now for a little test. FIVE symbols are going to be highlighted and you have TEN seconds to write down the six-figure grid reference for each symbol. 109876 54321 1 CLICK to start..... CLICK for the next symbol 3435 28 29 1

5. Six-figure grid references 109876 54321 2 CLICK for the next symbol 3435 28 29 1 2

6. Six-figure grid references 109876 54321 3 CLICK for the next symbol 3435 28 29 1 2 3

7. Six-figure grid references 109876 54321 4 CLICK for the next symbol 3435 28 29 1 2 3 4

8. Six-figure grid references 109876 54321 5 OK all finished – let’s check the answers next. 3435 28 29 1 2 3 4 5

9. Six-figure grid references Remember – you should be no more than one number out on the red figures 3435 28 29 1 2 3 4 5 ANSWERS: 1 = 343281 2 = 349285 3 = 345285 4 = 341289 5 = 347287 CLICK to see the answers…

10. Six-figure grid references This Powerpoint Presentation was developed by GeoInteractive – a teachers website producing interactive resources and other teaching materials. The presentation can be amended for use in the institution licensed to use these resources but please do not remove the copyright notice or pass on to other institutions. Copyright © GeoInteractive 2004 www.geointeractive.co.uk