Grab the reader's attention with a hook and state why your topic is important. Establish your position on the topic or issue by stating your thesis.
Introduce a claim in support of your thesis. Present evidence (a quote, a chart, statistic, an equation). Spend the rest of the paragraph tying your claim to the evidence.
Introduce your second claim. Next present evidence, then tie evidence to claim.
Present your third claim. Introduce evidence, a study, a quote, or a proof, then spend the rest of the paragraph tying claim to evidence.
Present the counter argument, to strengthen yours. If you are pro, consider those against, or vice-versa. This will broaden and flesh out your own argument to meet these challenges. You can also construct the entire essay on refuting a counter claim.
Sum up what you've claimed and what you've said. Here you will find your actual main claim, or thesis, in this summary. Tie loose ends, restate your subclaims, and open the discussion a bit wider. No evidence is presented here, nor quotes used here.