2. Grid references on OS maps Aim To be able to give & follow 4/6 figure grid references Key words Grid reference, eastings, northings

3. How to give four figure grid references

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

5. 31 32 33 34 35 36 Grid lines called Eastings are from top to bottom Grid line numbers are at the top and bottom So this is Easting 35

6. 27 26 25 24 23 22 27 26 25 24 23 22 Grid lines from side to side are called Northings Grid line numbers are along both sides So this is Northing 24

7. A 27 26 25 24 23 22 27 26 25 24 23 22 31 32 33 34 35 36 What is the four figure grid reference for this square?

8. A 31 32 33 34 35 36 Find the line along the left of the square. This is Easting 34

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

10. A 25 34 The four figure grid reference is 3425 Easting 34 Northing 25

11. 01 02 03 04 1213141516 What grid square is Calvin in? Answer: 1203

12. 01 02 03 04 1213141516 What grid square is Tigger in? Answer: 1501

13. 01 02 03 04 1213141516 What grid square is Oddie in? Answer: 1503

14. 01 02 03 04 1213141516 What grid square is Elmo in? Answer: 1303

15. 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

16. 97 98 99 00 69 68 67 70 Exercise What is the grid reference of squares A-J A B C D E F G H I J A Reproduced with the permission of the Controller of HMSO © Crown Copyright NC/02/15232 B C D E F G H I J C 9967 B 9869 A 9768 D 9767 E 9669 F 9969 G 9867 H 9769 I 9968 J 9766

17. ACTIVITIES Answer questions Q1-5 on page 99 of the Foundations textbook

18. 27 26 25 24 23 22 27 26 25 24 23 22 31 32 33 34 35 36 What are the four figure grid references for the squares with these symbols? 3124 3223 3525 3522 3325 All right? Some wrong? Double click icons

19. How to give a six figure grid reference

20. 27 26 25 24 23 22 27 26 25 24 23 22 31 32 33 34 35 36 The church is in square 3224, but where exactly is it?

21. 27 26 25 24 23 22 27 26 25 24 23 22 31 32 33 34 35 36 It is nearer to 33 than to 32 It is nearer to 24 than to 25 But how ‘near’ is nearer? We need to look more closely.

22. Look closer at one grid square

23. 32 0 33 0 3233 24 0 24 25 0 25 328 243 A six figure reference at 328243 Draw lines between the main grid lines

24. 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

25. 32 0 33 0 32 0 33 0 24 0 25 0 330248 325243 326247 327240 322246 Where are these symbols? All right? Some wrong? Double click icons

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

27. Remember 32 24 327 This line first Then this line 246 Church at 327246

28. 32 0 33 0 32 0 33 0 24 0 25 0 330248 325243 326247 327240 322246 Where are these symbols?

29. Greenock map extra questions 1.Draw the symbol for: 2. 3. 4. 5. 6. Give a 6 figure reference for a golf course 7. Give a 6 figure reference for parking 8. Give a 6 figure reference for tourist information 9. Give a 6 figure reference for a museum

30. ACTIVITIES Answer questions 1-2 on page 101 of the Foundations textbook. Answer questions 1-3 on page 105.

31. Greenock map Practise What word/Symbol is found in each square? Words Symbol 1.2678 2.2976 3.2777 4.2770 5.3171 6.2975 7.2376 8.2974 Fort Matilda Garrel Point Observation tower Auchentiber Dowries Strone Midton Bridgend 1.268704 2. 240727 3. 277750 4. 243779 5. 317747 Answer questions Q1-4 on page 99 of the Foundations textbook Q1-2 on page 101 and then questions on p105.

32. Greenock map 6 figure questions What symbol is found at: 1.268704 cairn 2. 240727 trig point 3. 277750 transmission tower 4. 243779 railway station 5. 317747 church. 6