Studies have shown that writing information down helps you remember it. By rewriting your notes, you are helping to ingrain the information into your memory. Additionally, by revising your notes, you are reviewing the material. One trick in rewriting your notes is by contraction. We recommend a two level contraction; the first level should be a sentence, only long enough to stimulate your brain to remember the larger content. The second level contraction should be one or two words that stimulate your brain to remember the larger content. Writing is so powerful that it doesn't even have to be on paper, Once you have completed the second level contraction, continue writing, almost anywhere you can; on the table top and even in the air.
Each time you reread information, you will learn some additional information. Ensure to reread the content until you get to the top of the diminishing returns curve.
Research has shown that most people need to expose themselves to information a minimum of FIVE times before they learn something. Your teacher will go over it in class only once, if at all, and you are responsible for the other four times! Reading the text before class, even just to see it once, not necessarily understand it, will make it familiar and you will understand it better and faster in class. Because this type of reading is relatively passive, you can read the more difficult topics just before you go to sleep. Once you go to sleep, your brain will make these connections passively and enable you to understand these difficult concepts better when you read them a second (or third) time.
This is especially when you are preparing for tests or exams. Studying ahead of time allows enough time for neuron connections to be established, resulting in understanding and successful development of long-term memory.
Wise people say, 'The more you share, the more you gain'. If you are able to explain the information in a way that a child can understand, then it means you also have understood it. You can also explain it to an imaginary audience, speak it loud, trust me you will not look insane, but again, you are better off looking insane and excelling in school, than the contrary.