Two lessons per week is a good average, but of course this depends on how fast
you or your children want to learn, and on your availability. I do require a fixed weekly
schedule with each student.
I recommend one-hour sessions in order to get "warmed up" with the language, and
then have a decent amount of time for the lesson. Exceptionnally, if your schedule doesn't allow the full hour, I can schedule
regular 45-minute sessions. Of course I can also schedule longer lessons if you wish to practice more.