Read the summary of each chapter , try and remember keep points of certain big answers , like these 5-markers. Do not panic when you see any big chapter , relax and read the notes given by your teacher. Then, makes points of your own , and try practicing those answers , which you cannot remember the key points. And do not read anything just before you attempt your exam, you might forget , what you learnt. Since it is social sciences , try to relate things , when it comes to reasoning questions .