Essay writing

I find that the best way to start writing something is to do a concept web of the topic. The web will have the central theme in the middle of the page circled and then write each supporting idea  off of that theme and then form sentences off of that idea.  See the example Below: Sorry but there is no way to circle these things so, I have had to become inventive. 
                                                                                Trees---how they grow----sunlight----oxygen
if (isMyPost) { }