Recite regularly at the end of each section. Close the book and try to remember the main points just read. What can't be recited wasn't stored. Go over again the material that you had difficulty recalling. Recording actively engages you in the reading process.
Active methods result in better reading comprehension.
Record your answers on the question sheets you created earlier. Use summary notes, not long notes which regurgitate every word you read. By paraphrasing information, you increase your ability to retain and understand the information. Some examples of other recording methods you can use in conjunction with your summary notes. Write main ideas and details only in the margin of the textbook.