After learning the hard way, I prepared a sheet giving the scope of the class, the time allotted, the items students were expected to bring,and a disclaimer that at least 3 people needed to sign up, or the class would be re-scheduled.
When they signed up, they paid for the class in full & there were no refunds for no shows (exceptions at the discretion of the teacher - death in family, etc.). Keep your"kits"for them with you -don't send them home! When class begins,expect socializing for 15 minutes, but then get to work. Have a hand-out prepared taking them through the steps (so they don't have to take notes) -which will also allow them to complete the project at home if they do not finish. Of course, these are just suggestions for you, but each one was created by MY learning curve & many "I'll never do it that way agains!". A happy experience for the students AND teacher will prevent complaints (students) & burnout (teacher). God bless! Debbie