Teachers in students' groups alternate. How to create a course?

Two different situations can arise:

a) The students take expert training with three different masters. The masters alternate in teaching the students' groups. Every master follows his own teaching plan.

If this is the case, every master has separate course for each students' group.

b) There are two classes. The students are divided to three students' groups for English lessons. They are taught by three different teachers. The teachers in the groups alternate, but they still follow the same plan for each group.

How to create the courses in a correct way?

As all of the teachers follow the same teaching plan in the same group, we reccomend creating one course for each students' group. The course will be shared by all three teachers. All of them have access to the same teaching plan.