Here's a study tip I gave to a student just tonight. One of the issues that I see with students is that they only study for tests, starting the night before or so. As a tutor, I know that strategy rarely works well. When I ask the student why he/she doesn't study just a little bit every day, the response is generally the same: there's no point studying beforehand since I'll have forgotten it by the test.
That is why I have my own strategy. It's one to get students started with learning the importance of studying. For some, it might be enough on its own for the learning (or grades) that they desire; for the rest, it's at least a step in the right direction.
It's actually very simple. All I say is to take a minute or two per section that the student has learned thus far. Then, after doing a quick review, take five minutes or so to go back and hit the roughest section in more detail. It generally takes 15 minutes top to do, and it really helps to keep the ideas fresh. I further advise to do the studying during a set time that they already have. For example, I know many students who come home from school and grab a snack, which is a perfect time to study. By the time the student is done with the snack, the studying (for one subject) will likely be done or close to being done. Then, it's almost as if it took no time at all.
Now, like I said, this is just a foundational study skill. Later on, it's good to add to it, either more subjects, going more in-depth, or going ahead in the chapter to get a preview. Still, it's a great way to get a student to start studying daily who hasn't done so before, especially if you can find a time so that it feels like no time is lost.