Keeping up with course work can require time that is set aside for that and only that, so you identify the time and place and hard landscape it. So yes it is a context but it is more. You need to portest that time. Study sessions for most people will need to be at least 2 hours, but there is variation and many people like larger blocks as it takes time to settle in and get into the deeper thinking modes. Although I don't have a love for the Covey methods, they do suggest that you think of some things as "big rocks" and put them in your "aquarium" and then put the smaller rocks and plants around them. Study time, may always be a big rock. However, review and research might be aportioned through various contexts without specific times. Good luck!