What is an important characteristic of a well-structured key point?

A well-structured key point is essential because it directly supports the controlling idea of a text. The controlling idea sets the foundation for the main argument or theme, and key points serve to flesh out and reinforce this idea. By ensuring that key points are aligned with the controlling idea, the writer provides clarity and makes it easier for readers to understand the main purpose of the text. This alignment is critical for effective communication, as it helps maintain focus and coherence throughout the writing, guiding the reader through the argument or narrative without unnecessary distractions.

Other characteristics, such as confusion or irrelevance, detract from the effectiveness of communication, while summarizing key points can dilute specific details that bolster the main argument. Therefore, the emphasis on supporting the controlling idea is what makes a key point truly valuable in reinforcing the overall message.