Essay writing must have a strong thesis, or argument. This will bind the essay, give it structure and allow it to move with the possibility of inner conviction.  I teach students to break down the question, find how they will argue their point and to define what it is; then to create an introduction that is essentially the essay in a minute form and where the main points turn into the paragraphs in the body of the essay. www.westlondon-englishtutor.com English and Media tutor, Harrow, London, UK