1. Unit 4.3 / Political Division

2. Objectives of the lesson:  Explain why border of the countries sometimes changed.  Name the types of borders

3. Highlighted on!!  Political map.  Physical map.  Some borders of the countries.  Why borders often changed?  Use of pass port.

4. The World Political  Political maps show how people have divided places on the Earth into countries, states, cities and other units for the purpose of governing them.  A political map often uses colors to show the boundaries between states or countries.

5. Political Maps  Lets look at some examples of political maps.

6. Political map

7. Political maps

8. The World Physical  Physical maps show what the surface of the Earth looks like.  A map showing Mountains, Lakes, Plateau and River ( Natural Features)

11. Types of borders of countries:  Natural borders like, River, Mountain ranges and Sea  Some times borders decided by people.

12. Natural borders countries: River as a border:  USA and Mexico by the Rio Grande.  Romania and Bulgaria by the Danube  Thailand and Laos by the Mekong.  Mountain as a border:  France and Spain by the Pyrenees  France and Italy by the Alps. Sea as a border:  Sri Lanka, Maldives, Madagascar, Indonesia and Jamaica.

14. Mekong river

15. Pyrenees

17. On Task!!  Why do you think the borders of countries have not always remained the same?

18. Borders changed:  consensus, war and  conflict between nations in the past.  The borders of some countries are still under dispute, and so fighting and conflict continue.

20. Thanks for Your Corporation!!