I guess the essay should be below format, especially in IELTS:
Introduction paragraph
Body paragraph 1 -3
Conclusion Paragraph
I agree with amalxavier..:)
Before we start to write essay, first of all, make sure with the pattern essay... this can make or guide us easier to write essay.
May I give you some advice?? :)
First Paragraph: Introduction; in this part, you can write your topic in general. then, paraphrase the question and clarify your posistion (which do you choose : that is more benefits or more problems).
Second and Third paragraph: in this paragraph you explain why you choose benefits on problems and give some sample to support your argument.
Fourth paragraph: Conclusion; in this part, you can write summary your essay. (make it short)
My apologies if I make mistake..I'm beginner too..:)