This document discusses the key components of a well-written paragraph: a topic sentence, major idea, minor idea, and concluding statement. It explains that a paragraph should contain a minimum of 4 sentences to cover these elements - one sentence for the topic sentence introducing the main idea, one or two sentences for the major idea explaining the topic sentence, one or more sentences for a minor idea giving examples or further explanation, and one sentence for a concluding statement that wraps up the paragraph. Identifying these components in paragraphs can help improve writing skills.