Lesson

A lesson is one event that will be scheduled in the timetable. Each lesson is a part of a single course.

Duration

Each lesson has a duration given in periods. This is an unseparable contiguous block of time the lesson will take.

Recurrence

Lesson's recurrence defines the repetition of the lesson in a multi-cycle timetable, from once per cycle to once every X cycles. A cycle usually spans five days.

Each individual lesson happens at most once per cycle. Create more instances of a lesson (e.g. by cloning), for multiple lessons of the same subject per cycle.

Teachers

Each lesson has zero or more teachers, manually assigned to teach it.

Lesson sets

Each lesson can be included in any number of lessons sets.