![]() OBJECTIVES - Students should learn how to work out and use 4 figure grid references Optional Plenary or Starter - Symbols BingoĬlick here for the Bingo sheetsand here for the Bingo PowerPoint- thanks to beth2505 (TES) Use this template to record your new map on. Task 4 - - Complete this sheet - Adding Symbols to Maps - following the instructions carefully. Resource Sheet 1:25,000 Map Symbols Sheet Resource sheet 1:50,000 Map Symbols Sheet So, in real life, everything is 50,000 times bigger than on the map! In this instance, it means that 1 cm on the map represents 50,000 cm of real space. You will see that the symbol sheet has 1:50,000 written on the top. Task 3 - You will now complete this OS map symbols sheet using the link beneath to help you to draw and complete the symbols as necessary. Here is an 18 minute video that explains a little more about the company (not obligatory to watch!). They make super quality maps for many different places around the world. We are going to be using a map making company called the Ordnance Survey or OS for short. Task 2 - Watch the video above about map symbols. Check out the symbols for cities, rivers, oceans and mountain ranges. You will see that they are covered in different colours and different symbols. Have a good look at any of the maps / globes in the Geography classroom. More detailed indexes are provided by the 1:63,360 sheets, on which each 10-kilometre grid line is emphasized, and by the 1:625,000 maps which are also gridded at 10-kilometre intervals.Ok, so now we are moving on to real life maps. The number of each 1:10,560 sheet is linked to the number of its 'parent' 1:25,000 sheet: for example, if the 1:25,000 sheet number were TQ 47, the 1:10,560 sheet relating to its north-east quadrant would be TQ 47 NE. Each sheet of the National Grid 1:10,560 map, with sides representing five kilometres, depicts a quarter of the area shown on a 1:25,000 sheet. The numbering of National Grid maps derives from the numbering of sheets of the1:25,000 map, each of which is based on a ten-kilometre square. A note on the relationship between true, magnetic, and grid north appears in the south margin of the sheet, together with an explanation of how to give a National Grid reference correct to 100 metres, two panels of conventional signs, an index diagram to adjoining sheets, a 'survey diagram' where appropriate, giving the dates of survey of component larger scale sheets and, beneath, revision notes on other information on the map. Outer borders are graduated in scales of feet (west), yards (south), furlongs (east), and links and chains (north). All sheets also show latitude and longitude in association with the inner border abbreviated values are given at 1-minute intervals and full values, in degrees and minutes, accompanying the 1-minute interval nearest to the sheet corners. An inner border is divided at 100-kilometre intervals. Full grid values are given at the corners of each sheet, and the intervening values in kilometres, by the last two figures of the kilometre values from 00 to 99 inclusive. National Grid lines are shown at one-kilometre intervals. However, some sheets have an extended layout, especially where, as in coastal areas, this avoided the creation of sheets with large blank areas. It was originally intended that each sheet would represent a quadrant of a 10-kilometre square of the National Grid and so depict an area 5 x 5 kilometres. This series, however, contains a large number of Provisional Edition sheets: these are indicated in the catalogue. On publication of the Regular Series sheets, the corresponding Provisional Edition sheets were withdrawn. The Provisional Edition was not intended to be a definitive publication. As far as possible, the Provisional Edition incorporated revision undertaken between 19 at the 1:10,560 scale for the preparation of the Seventh Series one-inch (1:63,360) map. The sheets were produced by fitting the material of the County Series sheets, together with revision data, into the framework of the National Grid, with a minimum amount of redrawing. This map was designed to provide, as quickly as possible, an up-to-date map from the best available information. Ordnance Survey of Great Britain: Six-Inch Maps: National Gridīetween 19, a new edition of the six-inch (1:10,560) map began to be issued 'on National Sheet Lines'.Ī Provisional Edition of the 1:10,560 map on National Grid sheetlines was introduced in 1953.
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