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Revision Revision Presentation Transcript

  • Map???A map is a drawing or picture, which shows the main features on the ground, as they would be seen from directly above. It could be anything from a sketch map for a visitor to your school, or a detailed map of your local town centre.A map can show many different things, such as road and railways, hill and rivers, countries and capitals and so on. The main purpose of a map is to show where places or things are in relation to other places.
  • List of map skills to master!• Direction  8 point compass• Scale  for example, 1:50 000• Distance  straight line and squiggly line• 4 and 6 figure grid-reference• OS map symbols• Height  spot height, triangulation pillar, contour lines and colour shading
  • Direction
  • Compass Directions68 N F H NW NE I D A W E67 J C G SE B SW E66 S 21 22 23 24 What direction are you walking ? A C G D F H I J B E A
  • What is a Scale?Every map has a scale printed on the front or thebottom of the page and you should always check thisfigure before you start reading it. It will tell you howmuch smaller the area shown on the map is comparedto the same area in real life.
  • What is a Scale?For example, a 1:50000 scale map, means thatone centimetre on the map is the same as50000 centimetres in real life, or in otherword, 500 metres. Or everything has beenshrank (reduced by) 50,000 times to make themap.
  • My scale is 1:50,000 2cm = 1000m  it is 1km 5cm = 2500m  2.5km1cm = 500m 9cm = 4500m  4.5km 14cm = 7000m  7km
  • Distance
  • 4 and 6 figure grid-reference
  • MappingFour figuregrid references
  • This is part of a 1:50000 OS map Each square is 1km x 1km Reproduced with the permission of the Controller of HMSO © Crown Copyright NC/02/15232
  • This is part of a 1:50000 OS map Each square is 1km x 1km Each square has a different grid reference Reproduced with the permission of the Controller of HMSO © Crown Copyright NC/02/15232
  • It has Easting grid lines East Each square has A four figure 96 97 98 99 00 Grid Reference 01 71 71It hasNorthinggrid lines 70 70 n 69 69 o r 9968 t h 68 68 67 67 96 97 98 99 00 01 Reproduced with the permission of the Controller of HMSO © Crown Copyright NC/02/15232
  • Exercise What is the grid reference of squares A-J 97 98 99 00 A 976870 70 B 9869 C 9967 E H B F D 9767 E 966969 69 F 9969 A I G 9867 H 976968 68 I 9968 D G C J 976667 67 J 97 98 99 00 Reproduced with the permission of the Controller of HMSO © Crown Copyright NC/02/15232
  • MappingSix figuregrid references
  • Each square has Each square has an invisible grid to help givea four figure 6 figure referencesgrid reference 9968 9 8 The church is at Easting993 7 6 5 The church is at Northing688 4 3 2 The 6 figure 1 Grid Ref is 993688 0 68 0 1 2 3 4 5 6 7 8 9 99 Reproduced with the permission of the Controller of HMSO © Crown Copyright NC/02/15232
  • 6 Figure grid references A 210 67768 B A H C C D D E E67 F B G J F H G I I66 J 21 22 23 24 Easting before Northing (E before N !)
  • 6 Figure grid references A 210 67768 B 225669 A H C C 231678 D 232671 D E 218671 E67 F 239665 B G 235662 J F H 223678 G I 221660 I66 J 211666 21 22 23 24 Easting before Northing (E before N !)
  • OS map symbols
  • If you want more revisions help… http://mapzone.ordnancesurvey.co.uk/mapzone /PagesHomeworkHelp/docs/easypeasy.pdf You can also use your “Passport” booklet for revision  Good luck!