Each lesson is 1.5 hours (or 3 hours for double lessons in the intensive course). Between lessons you are required to make homework and prepare for the next lesson. The time needed for this varies from person to person, but and estimate of 2 hours between lessons seems to be the average. More is always better! I also recommend practicing the real life situations that we do in class in your own environment. You will get personal feedback from me on all your homework assignments.