Best approch to get strong hold on DI & SC

[vdgmat]

I know my weaknesses are SC & DI in broad sense
Now, I need help on how to identify sub topics in which I should concentrate more? <<I am unable to find any pattern in my mistakes.>>>


I have read Manhattan SC book completely. Any suggestion on how to revise book in effective manner?

About DI, I am not sure what is going wrong because as i read explanation i get feeling that i know the concept. (Infact, I do know)

[StaceyKoprince]

You have to go back and ask yourself exactly WHY you're getting these different problems wrong. Until you know why, you don't know what you need to study in order to get better.

When you get an SC wrong, there are multiple things to examine:
1) what actual rules were being tested; what you did and didn't know
2) whether meaning was being tested and, if so, how
3) why you eliminated the right answer (the exact reasoning)
4) why you picked the wrong answer (again, the exact reasoning)

On DS, it's similar: you say you know the material because you understand the explanations, so that means you're making mistakes somewhere along the way when you do the problem yourself. (It doesn't sound like you simply don't know the material.) So go back, step by step, and figure out exactly where you made your errors and why. Note that the errors may be conceptual: I thought they were asking for this but they were asking for that; I forgot to test this possible case (eg, negative numbers); and so on.

If you can figure out why, then that helps you figure out what you need to study, and then you can also give us detail on the problems you're having and we can help you figure out how to deal with them. Right now, though, I can't give you much specific advice because I don't know what specific problems you're having.

If you can't figure out why yourself, then you may need to join a class or work with a tutor so that someone can help you to figure this out. You can also try working with a friend who is strong in these areas - he or she may be able to help you figure out why. (Generally speaking, working with a friend is free, which is great, but the friend may not be able to help you as efficiently as a teacher... so you have to decide whether you think it's worth the money.)