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Grid references
The lesson focuses on teaching students how to give their location using grid references, specifically 4 and 6 figure references. Key objectives include understanding compass directions, employing grid references for mapping, and applying these skills to accurately locate positions. The lesson includes practical exercises and tests to assess students' understanding and proficiency in using grid references.
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Grid references
- 1. Lesson objectives: Knowledge: All willunderstand you can give your position using a grid reference Most will explain some tasks/jobs that require a grid reference to be used Skills: All will be able to give a 4 figure grid reference Most will be able to give 4 & 6 figure grid references Some will combine grid references & direction to give a location on a map
- 2. Keywords for today'slesson: Compass Direction Grid reference Map Key phrase for today: “Along the corridor and up the stairs”
- 3. First, let’s reviseour compass directions …
- 9. 4 Figure GridReferences Used in Ordnance Survey maps to locate a position
- 10. Northings They run fromNorth to South
- 11. Eastings They run fromone West to East
- 12. Grid References Joined togetherthey form a grid
- 13. Co-ordinates These help usidentify the line by having a number on them 23 24 25 26
- 14. Co-ordinates We do thesame with the Eastings 01 02 03 04
- 15. Grids Remember we joinedthe Northings and Eastings together before. We do the same again including the numbers 01 02 03 04 23 24 25 26
- 16. 64 65 22 67 66 23 24 25 B A 2365 2466 Howto give a 4 figure Grid reference: “Along the corridor and up the stairs”
- 17. Keywords for today'slesson: Compass Direction Grid reference Map “Along the corridor and up the stairs”
- 18. Give the gridreference 00 01 02 03 04 00 01 02 03 04 0003 or 0301
- 19. Give the gridreference 40 41 42 43 44 30 31 32 33 34 4031 or 4331
- 20. Give the gridreference 86 87 88 89 90 21 22 23 24 25 8621 or 8824
- 21. Give the gridreference 67 68 69 70 71 90 91 92 93 94 6890 or 6990
- 22. Give the gridreference 29 30 31 32 34 37 38 39 40 41 3037 or 3038
- 23. 2 Minute Test OK,lets go!! 56 57 58 59 60 61 14 15 16 17 18 19 2 3 4 5 6 7 8 9 10 1
- 24. How well didyou do? 10 Outstanding! 7-9 Tremendous 6-8 You’re doing OK 4-5 Keep practicing 0-3 Ask for some help
- 25. 6 Figure References Theseare used to give an accurate position. Usually accurate to a 100 metres.
- 26. A 6 Figurereference looks like this GR 234678 Grid Reference Northings and Eastings
- 27. How do weget a 4 figure Grid Reference? First we identify the square like we did before 22 23 24 25 26 01 02 03 04
- 28. Square 2402 We dividethe square up into 10 equal lines Eastings
- 29. Square 2402 Now weadd the Northings
- 30. The Square 2402 Nowwe add the Northings and Easting numbers 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
- 31. 22 23 2425 26 01 02 03 04 We read the Easting first = 24 Next we read the Northing = 02 Reading the reference
- 32. Reading the reference Nowwe have the Northing and Easting numbers, write it down like this 24 02 Leave a space for the third number and last number shown in yellow
- 33. Reading the square2402 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 1. Like in the grid before read the Eastings first 2.Then read the Northings = 5 = 4
- 34. Now What? REMEMBER 24 0254 1.Easting 2. Northing Then we put the Northing 4 into the last place We put the easting 5 into the third space
- 35. The 6 figurereference The reference is now complete 245024
- 36. 64 65 22 67 66 23 24 25 248657 242652 245659 229670 240654 222648 229642 225645 Howto give a 6 figure Grid reference:
- 37. Give the gridreference 453014 or 014453 45 46 02 01
- 38. Give the gridreference 02 03 02 01 020011 or 024013
- 39. Give the gridreference 98 99 79 78 988785 or 988789
- 40. Give the gridreference 11 12 36 35 • 115355 or 111354
- 41. Give the gridreference 47 48 37 36 477364 or 470367
- 42. 64 65 22 67 66 23 24 25 B A Let’see how you do …
- 43. 2365 229642 2466 225645 222648 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 248657 242652 245659 240654 229670 Let’ see how youdid … Swap your book with the person beside you!
- 44. Have we metour lesson objectives today? Knowledge: All will understand you can give your position using a grid reference Most will explain some tasks/jobs that require a grid reference to be used Skills: All will be able to give a 4 figure grid reference Most will be able to give 4 & 6 figure grid references Some will combine grid references & direction to give a location on a map