The ability to write a successful essay begins with the ability to write a strong paragraph. So, I want to talk about basic paragraph structure and a little bit about what makes an effective paragraph. Okay, so every paragraph has the same three basic components. You have your topic sentence, your supporting sentences, and your concluding sentence. Now, the topic sentence is important because it's the main idea of the entire paragraph. The supporting sentences have one job, which is to develop the main idea or support the topic sentence with examples, details, and explanations. The concluding sentence is there to give the paragraph closure and touch upon the main idea, signaling that the topic is finished and transitioning to something else. The entire paragraph stems from the topic sentence, so it's very important to have a strong one. Let's look at an example of a good topic sentence: "Taking too many university courses at once can have potentially serious consequences." This is a strong topic sentence for a couple of reasons. Firstly, it has a clear topic: taking too many university courses at once. Secondly, it has a main idea: potentially serious consequences. It's effective because it gives the reader an idea of what kind of paragraph they will be reading, whether it's descriptive, narrative, opinion-based, or a comparison. In this case, it's clearly going to be a paragraph discussing the effects of taking too many courses. Let's now look at some example topic sentences to determine the strongest one. None of these four sentences are strong topic sentences, and each has its own issues. Sentence 1: "Four to five teenagers in Canada have cell phones." The problem with this sentence is that it's a fact and therefore too specific and narrow to serve as a topic sentence. There's no...