Question and challenge the author's statements and ideas. Remember that textbooks are not the final word, but a means of actively involving the reader in the learning process. The process of selecting and marking requires the student to find main ideas that increases their chances of understanding the material for the present and future reference. In addition, the underlined markings enable students to grasp the essential point when reviewing for exams. Underline key words and sentences that will make those items stand out in your mind.
Summaries enable students to write a brief summary of a text section in their own words.
You can use brackets to enclose several consecutive lines that are important, than underlining all of them. Underline the points that are clearly essential. In order to remember the material, summarize the material in your own words. Read your textbook material on time and prior to the corresponding class or lecture as much as possible. Develop your ow note taking technique for each class.