You'll need to do a bit of research, if your instructor hasn't already given you any handouts or writing guidelines. I'd ask your instructor if he or she has any guidelines for you to follow first.
Then, I'd suggest an internet search on '
paragraph development'.
Here are a couple of results, chosen from the first two search returns.
UNC Writing Center's guidelines on paragraphs
University of Washington's paragraph development guidelines
Those are merely chosen at random and not necessarily recommendations. There will be many more, but you'll note they cover pretty much the same basic ideas.
You're welcome to post back with more specific questions, but we cannot actually write any of your essay, as it has to be your own work.
Also, note this should have gone in the Editing and Writing Topics section, not the Pronunciation and Phonetics section, but I imagine a moderator will move it there for you eventually.
Actually, I see that this was a
duplicate post from the Editing section. Perhaps a mod can merge the threads.