Final answer:
The main purpose of the Cornell Notes system is to act as a structured note-taking method that aids in the efficient review and retention of information studied.
Step-by-step explanation:
The main purpose of the Cornell Notes system is to serve as a note-taking method. It is designed to organize notes, helping students to extract, learn, and review the material more efficiently. The system encourages students to consider the material actively, by dividing the paper into distinct sections for notes, key points, and a summary. This format not only facilitates the initial recording of information but also supports subsequent study and memorization processes. The Cornell Notes system is particularly beneficial because it helps to create a useful framework for revising and integrating knowledge, thus enhancing long-term retention of information.