Give an example of a supporting detail in writing.

Supporting details in writing serve to reinforce or clarify the main idea presented in a piece. They add depth and credibility to the argument or narrative by providing evidence, examples, or additional information that substantiates the central concept.

Statistics or quotes that back up the main idea are classic examples of supporting details because they offer concrete proof or expert opinions that lend validity to the writer's claims. By including these types of details, the writer can strengthen the reader’s understanding and acceptance of the primary argument, making the writing more persuasive and informative. Such details are essential in both academic writing and persuasive writing, where the goal is to convince the reader of a particular viewpoint or to explore a topic thoroughly.

Introducing a new topic, presenting anecdotes for entertainment, and summarizing the main point do not provide the necessary reinforcement that supporting details are intended to achieve. Instead, these elements serve different purposes in writing, such as transitioning between ideas, adding narrative interest, or encapsulating the overall argument respectively.