Revising effectivelyWatch this thread
It's SO worth experimenting and finding what works best for you..
The answer to your other question about if the method is efficient is that you usually can tell when you will remember some of what you are revisiting.
I would revise well by finding what method you like to use such as using or doing a power point slide presentation so that its a summary of what you are revising but it all depends on the person you. could lisern to some teachers on YouTube which can help you learn about the subjects.
The evidence is that methods that you get actively involved in work best eg actually writing, doing past questions, making cards.
Also you need to keep testing yourself. That way you can work out which methods work best for you - see how much you learn using different methods.
Also, remember that different subjects might need different revision methods eg maths students often use past papers whereas history students need more knowledge so may make revision notes or cards.
What have you been trying? How did it go?
Knowledge is learnt and lost through your ability to apply it either literally or theoretically on a continuous basis.