explain a topic sentence and give an example

A topic sentence is a sentence that expresses the main idea or focus of a paragraph or essay. It typically appears at the beginning of a paragraph and helps to guide the reader by summarizing the main point that will be discussed.

Example:
"Climate change is becoming a significant global crisis that requires immediate action."

In this example, the topic sentence clearly states that the main idea of the paragraph or essay will be about climate change and the urgency of addressing it. This topic sentence provides a roadmap for the reader and sets the tone for the rest of the content to follow.

A topic sentence is a sentence that summarizes the main idea of a paragraph or section of a piece of writing. It is usually found at the beginning of a paragraph and helps to guide the reader by stating the main point or focus of the paragraph.

Here is an example:

Topic sentence: "The importance of regular exercise cannot be overstated."

In this example, the topic sentence clearly conveys the main idea of the paragraph, which would likely continue discussing the reasons why exercise is important. It provides a clear focus for the reader and helps them to understand the purpose of the upcoming paragraph.

A topic sentence is a sentence that presents the main idea or focus of a paragraph. It serves as a guidepost for the reader, indicating what the paragraph will be about. The purpose of a topic sentence is to provide clarity and direction, so that the reader can understand the overall theme or argument being presented.

To create a topic sentence, you can follow these steps:

1. Identify the main idea or point you want to convey in the paragraph.
2. Consider the supporting details or evidence that will be discussed in the paragraph.
3. Condense the main idea and supporting details into a concise and coherent sentence.

For example, if you are writing a paragraph about the benefits of regular exercise, your topic sentence could be: "Regular exercise has numerous health benefits, including improved cardiovascular health, weight management, and reduced risk of chronic diseases."

In this example, the topic sentence clearly states the main idea (regular exercise has numerous health benefits) and provides a preview of the supporting details (improved cardiovascular health, weight management, and reduced risk of chronic diseases) that will be discussed in the paragraph. This allows the reader to know what to expect when reading the paragraph.

on my outline it says "focus on one idea about your topic"

I apologize for any confusion. You are correct, a topic sentence typically focuses on one main idea about your topic. Let me provide a revised example based on that guideline:

Topic: The benefits of regular exercise
Topic sentence: "Regular exercise improves cardiovascular health."

In this revised example, the topic sentence focuses specifically on the cardiovascular health benefits of regular exercise. The subsequent paragraph would then discuss and provide evidence to support this main idea. Remember, the topic sentence should provide a clear and specific focus for the paragraph, while also connecting to the overall topic.