A concluding sentence summarizes the information that is presented in a paragraph. It connects the main idea with the ideas developed throughout the paragraph.

Supporting sentences are the body of the paragraph since they explain the topic sentence and develop the main idea. They provide details like who, what, when, why, or how. In addition, they are used to illustrate, provide examples, reasons and statistics that make the main idea clear and coherent with the topic sentence.

A topic sentence states the main idea. It is usually the first sentence in a paragraph but it may appear anywhere in it. It presents the issue or a summary of it and it is accompanied by other supporting sentences.