Unit 1 Maps and atlases Learner’s Book page 8 Unit focus


• In this unit learners will learn how to locate places on a map using co-ordinates, which are the lines of latitude and longitude, measured in degrees and minutes.


• Learners will also review word and line scale and be introduced to ratio and metric scale to calculate distances.


Background information


In addition to using atlases and maps to identify the latitude and longitude of places, consider introducing GPS as another means of calculation for those who have access to this form of technology. Use tables in roadmap books to verify calculations of distances between South African settlements.


Resources


• A globe • Atlases • A wall map of the world You can get this from www.mapstudio.co.za. Telephone Map Studio at 0860 10 5050 or write to them at 1st floor Wembley Square, Solan St, Cape Town 8001.


• A useful resource is Map of the world jigsaw puzzles, also available from Map Studio. You could use these, for example for learners who finish their work early.


• A piece of thread, wool or thin string to work out indirect distances such as along rivers, roads or railways


Teaching guidelines


• Some learners get confused that lines of latitude run from east to west but give the position north and south. This is best explained by pointing out that these are imaginary lines that are made up of all the points of the same latitude, for example, a line of points that are the same distance from the equator.


• As an extension or fun activity, learners can make up grids of latitudes and longitudes that cover stretches of oceans and play the game Battleships. Visit wikipedia.org/wiki/Battleship game for a description and the rules to this game.


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