A paragraph's core theme is the author's statement about the issue. It is frequently conveyed verbally or implicitly. A text can be considered as a series of paragraphs addressing different themes or ideas.
Generally, the main purpose of a text is to make an argument clear and convincing to its audience. The aim should be to move the reader from where they are now to where you want them by using appropriate techniques (such as relevant examples and strong language).
In academic writing, the main purpose of a text is usually to present information accurately and concisely. An academic text may take the form of a dissertation or article for publication in the academic journal. In both cases, the goal is to explain other people's work or ideas and to provide evidence that you have understood the material correctly. As with any essay, the aim is to show how each section contributes to the main message of the paper.
Some texts are intended to give information, while others are designed to persuade or inspire readers. Some writers distinguish between these types of text, but many do not. The choice of whether to use descriptive or persuasive writing techniques is one that should be made based on how the writer plans to reach their audience.
The principal point or thought that the author wishes to express to the readers about the issue is the main idea of a paragraph. As a result, when the primary concept is articulated explicitly in a paragraph, it is expressed in what is known as the subject sentence. The subject sentence is the sentence that states this main idea and can be either a complete sentence or a phrase. After the subject sentence comes the supporting information or examples used by the writer to make his/her point clear to the readers.
An example would help to understand this principle better. Let us say that I want to write about flowers. Then, the main idea of my paragraph will be "Flowers are beautiful." This sentence expresses all that I want to tell the readers about flowers. So, it can be called the subject sentence. After this subject sentence comes the supporting information. In my case, this supporting information includes pictures of flowers - so they will make my point clearer to the readers.
Now, suppose I want to write about roses. Again, this sentence expresses all that I want to tell the readers about roses. In my case, this supporting information includes facts about roses - so they will make my point clearer to the readers.
The major notion is the paragraph's point. It is the most essential thought on the subject. To determine the core concept, consider the following: What is being stated about the individual, object, or concept (the topic)? The primary concept can be found in several locations inside a paragraph by the author. Consider each one carefully.
Once you have identified the major notion, go back over the text and look for instances where it is presented explicitly. You should be able to find more than one place where this concept is mentioned or implied. These are called secondary ideas. They are important too because they provide support for the main concept. Without them, the text would lose much of its meaning.
Now that you know how to identify the central idea of a text, try doing it on these sentences.