Decide on the most logical order of your paragraphs - this might be importance, chronology or causation, but the basic flow should be simple and clear
Start each paragraph with a sentence that clearly addresses the question itself - this will be your thesis for the paragraph and if a reader only read these opening sentences, they should make sense one after the other and provide a summary of your argument
Follow the opening 'topic' sentence with your reasoning and evidence for why this opening statement is valid. Be specific, not general. The more detail you can bring in, the more expert you will sound and the more persuasive your argument will be