Sure you can memorize some definitions or equations but the second you have to calculate yourself you will be hopelessly lost. At least two mathematicians used

Sure you can memorize some definitions or equations but the second you have to calculate yourself you will be hopelessly lost. At least two mathematicians used spaced repetition to further understand mathematics and make new insight. Conceptual understanding is a good memorization techque. Underlining and highlighting however, are an ineffective method of studying for any subject, even history.