We use Moodle at a secondary level school in Switzerland in a blended learning context. Each teacher gets assigned aautomatically one course for all of his/her classes (which can be as much as 8 or 9). To better manage the activities for different classes an improvement of the group mode:

• extension to activities and ressources
  -full implementation for Metacourses
  -complete separation of groups (no visibility of activities/ressources of other groups)

would add a huge plus in usability of Moodle for this context.