It is a type of organizational writing principle that guides the reader to the sequence of ideas according to its importance.

The principle you're referring to is known as the "Principle of Order". This principle is used in writing to organize ideas based on their importance. Here's a step-by-step explanation:

1. Identify the Main Idea: The first step is to identify the main idea or the most important point you want to convey to your reader. This should be the focus of your writing.

2. Organize Supporting Ideas: Once you have identified the main idea, you need to organize your supporting ideas. These are the points that will help to explain or support your main idea.

3. Arrange Ideas in Order of Importance: After you have identified your main idea and supporting ideas, you need to arrange them in order of importance. This can be done in two ways:

   • Deductive Order: This is when you start with the most important point and then move to the least important.
   • Inductive Order: This is when you start with the least important point and gradually move to the most important.

4. Use Transitional Words: To guide your reader through the sequence of ideas, use transitional words and phrases. These can include words like "firstly", "secondly", "in addition", "moreover", etc.

5. Review and Revise: Finally, review your writing to ensure that your ideas are organized effectively and that your reader can easily follow your sequence of ideas. Revise as necessary to improve clarity and coherence.