Recently a classmate of mine did a survey on the students study strategies. In general, there are two kinds.
The first kind of students make good arrangement of their time and activities. For example, in the day time they attend classes actively, pay attention to what the teachers are teaching, and often ask questions. In the evening, they need only to spend a little time finishing homework before going to bed. They sleep ealy and get well refreshed, so that they are always energetic in class.
While the other kind of students aren't as effective. They spend a lot of time doing homework and studying knowledge. As a result, staying late frequently leads to tiredness in the day time. They can't focus on study , and can't help falling asleep in class, which results in low efficiency and great loss in important knowledge.
In my opinion, we should learn from the first kind of students. Only by improving our study strategy can we achieve high efficiency in study, as well as every other thing!