http://www.squidoo.com/problems-to-avoid-in-your-theory-of-knowledge-tok-essays-1
Some interesting advice being given here - very important advice and very brief - which could help to refine your essay writing technique no end.
These sort of hints can make all the difference between borderline grades - one mark can make the difference between a Grade D and Grade C.
And, even though it pains us to think so, if you heed the simple advice, it could save you from the dreaded Grade E which means you may not get your Diploma.
Keep working hard!