Lost knowledge during discussion of the group findings
Feedback is only one-way during this episode, i.e. to the teacher. Students do not write down any of the points which are brought up, so such information and meaning is lost. The question is: In the end, what will the students get from this lesson? Will they get anything meaningful?
Episode 2: Feedback
'Private and confidential' feedback
When students were asked to give feedback, they raised boards with their answers which only the teacher saw. This creates a more secure classroom environment.
Overall, I think the lesson was student-centred, since the students were given the initiative to indulge in groupwork, discussions etc. The teacher was just taking care of the agenda of activities.