A paragraph is a group of sentences that fleshes out a single idea. The main features of writing a paragraph include:

1. Unity: A paragraph should focus solely on a single idea, point, or argument that is being discussed. Therefore, the paragraph should not begin to stray and develop new ideas. If you begin to write sentences that wander from the paragraph’s main idea, then it is time to start a new paragraph.

2. Coherence: The sentences in a paragraph should be organized in a logical manner and should follow a definite plan of development. Generally speaking, a paragraph should contain between three and five sentences, all of which help clarify and support the main idea of the paragraph. When a writer begins a new paragraph, it signals to the reader that the writer is changing thoughts or ideas, or is moving on to discuss a different aspect of the main idea.

3. Topic Sentence: A topic sentence is the most general sentence in the paragraph because there are not many details in the sentence. It introduces a panoramic idea that you will discuss in time. The topic sentence is divided into two parts: the topic and the controlling idea. The topic is the general subject matter, and the controlling idea is the writer’s specific idea about that topic. A topic sentence usually comes at the beginning of a paragraph and tells what the paragraph is about. It doesn’t necessarily summarize the information given in the paragraph, but it gives your reading a sense of direction.

4. Sufficient Development: A paragraph should contain sentences that support the main idea of that paragraph and maintain a consistent flow. The sentences should be organized in a logical manner and should follow a definite plan of development. A concluding sentence summarizes, restates, or evaluates the most significant ideas of the paragraph. It could also predict the condition of your topic in the near future.

It is important to note that different disciplines may have different requirements for what a well-written paragraph may entail, so it is always best to consult with your professor before beginning any writing assignment.