Have you reminded the reader of the strengths of your argument?
Have you avoided including any new information in your conclusion?
A practice-based topic (such as medicine, law, social work or business studies) should usually use real and referenced cases to illustrate a point.
This usually requires much more extra information than would be acceptable for examples in other fields, but this can often be resigned to appendices.
The paragraph topics must follow logically from each other and help to develop the theme or argument of the essay.
Restating/rephrasing of the second thesis point from the introductory paragraph B). Within the body of the essay, each paragraph should contain a clear and distinct topic, made clear by the topic sentence which is usually the opening sentence of the paragraph.
You must state your proof to your supporting points. All of this must fit with or merge with everything you wrote previously. Transitional sentence that perhaps rewords the thesis statement of the Introductory paragraph. Conclusional sentence rewording the conclusion of the first body paragraph. Conclusional sentence rewording the conclusion of the second body paragraph. Conclusional sentence rewording the conclusion of the third body paragraph. Summation sentence to close the paper and the argument made. Keep in mind that the minimum length of any essay is five paragraphs, with five sentences per paragraph; that's 25 sentences.
You must restate (rephrase) your thesis sentence and all supporting material in a brief and concise format.
An engineering or pure-scientific paper could make use of hypothetical cases, either well-known in the field or constructed specially by the author, to demonstrate the principle being discussed.
Such examples should be complete and coherent; as simple as possible without being trivial; requiring as little supporting material as possible to demonstrate the core principle, thus preventing distraction.