Reconsider the format (the material is ideal for a flipped classroom setting)

[christophfink]

The way the lessons are prepared (very detailed, and definitely working 95% of the time) makes teaching them in classroom meetings slightly redundant. The time in the classroom could be used more productively, e.g., by revisiting and reapplying the topics worked through independently at home. Ultimately this would mean having students study and follow what’s now the ‘lessons’ as homework, and converting the current ‘weekly exercises’ into tasks to be carried out in pairs or small groups during the classroom meetings.

This is just an idea, and would entail other consequences: e.g., it would question the need for student tutors, or at least the separate meeting with them.