A paragraph should focus on a single topic or idea. All of the sentences in the paragraph should relate to this main idea and support it.
Coherence
The sentences in a paragraph should be arranged logically and flow smoothly from one to the next. There should be clear connections between the sentences, and the reader should be able to easily follow the author's thought process.
Emphasis
The most important point or idea in a paragraph should be emphasized. This can be done through the use of strong verbs, vivid adjectives, or repetition.
Development
The author should provide enough evidence and support to develop the main idea of the paragraph. This can be done through the use of examples, statistics, or quotations.
Conclusion
The paragraph should end with a conclusion that summarizes the main idea or draws a conclusion from the evidence presented.