Your first timetable
A timetable is a list of classes, each with a room, a teacher and a number of places. Everything else can wait until somebody has booked.
What a class needs
Give it a name people would say out loud. Set the size in the field named places and leave the rest as it is.
- A start time and a length, not a vague "evening"
- A size you can teach well, not the size of the room
- One line on what to bring
After the first week
Look at who came, thank the regulars, and copy the week forward. See copying a week for the short way.