Final answer:
A topic sentence is the first sentence in a paragraph that summarizes the main point or argument and supports the thesis. It sets the direction for the rest of the paragraph, which explains, illustrates, and provides evidence for the point made in the topic sentence.
Step-by-step explanation:
The topic sentence is essential in essay writing as it articulates the main point or argument of a paragraph. It's positioned at the beginning and sets the direction for the remaining sentences, which are used to develop the topic through evidence, examples, and analysis. A strong topic sentence supports the essay's thesis and reflects the reasoning strategy of the paragraph. When crafting one, it's important to consider whether it:
- Reflects the selected reasoning strategy.
- Directly supports the thesis statement.
- Makes a sensible point.
- Cleary indicates the paragraph's purpose, such as providing background information or presenting an argument.
An example of an effective topic sentence might be, ”Avatar has produced the most life-like animated characters of any movie ever created.” This statement not only previews what the paragraph will discuss but also serves as a guide for the evidence that will follow, demonstrating the innovative use of special effects by the movie.