How to write correctly:

Unity.
One characteristc of a good paragraph is Unity. In a unified paragraph, all the sentences relate to the topic and develop the controlling idea. If a sentence or idea in a paragraph does not relate to the main idea, the paragraph lacks UNITY. The sentences that do not relate to the main idea should be taken out of the paragraph and perhaps developed in a onother paragraph.

Coherence:
Another important characteristic of a good paragraph is coherence. In a coherent paragraph, the ideas are arranged logically. The ideas and sentences are in an order that make sense to the reader. If the ideas are logically arranged, the reader easily follows the progression of all the ideas.
He or she can quickly understand the main idea and follow the writer´s thinking.


Cohesion:
The reader will be able to follow a paragraph easily if the paragraph has a smooth flow.
Smooth flow means that one sentence leads easily into the next sentence; the sentences are well-connected. This characteristic of a paragraph is called cohesion.

Edited by Marisol