One part class, two parts practice

Stephen Bosco once told me his formula for success: one part class, two parts practice.  That is to say, Stephen explained that for every time he comes to class, he spends at least two times on his own, practicing what he's learned in class. 

As he explained, class is where you learn, but practice is where you Get It.  If you only come to class once or twice a week, that's probably not enough to fully absorb what you've learned.  Practice, practice, practice.  Make it your own.

What's that formula again?  One part class, two parts practice.