In some places lead time and working ahead is valued, and in other places it is seen as a hindrance. In general good work depends on lead time, preparation, and planning. I like the kinds of good results that happens when that's in place, but that's not always possible and not always valued. It's important to understand who values that kind of work and supports it, and who does not. Then lean your teaching/learning ship in ways that matter and make a positive difference.