*from Abstract* Maybin, Janet; Mercer, Neil and Stierer, Barry (1992). 'Scaffolding': learning in the classroom. In: Norman, Kate ed. Thinking Voices: The work of the National Oracy Project. London: Hodder & Stoughton, pp. 186–195.
Glogowski explains how he realised that he was missing being involved in the process of brainstorming as students asked for comments about their essays from their peers, not him. Teachers are involved at the beginning and end, but not the middle. From the powerpoint experience, I would say Iended up being involved in many of the stages, looking over what they were doing both at an IT level and a language level rather that just called upon to answer questions.
F. Driewer, K. Schilling, and H. Baier. IEEE International Workshop on Safety, Security and Rescue Robotics, International Rescue System Institute, Kobe (Japan), (June 2005)
H. Baier, W. Lenhard, J. Hoffmann, and W. Schneider. Apprentissage, mémoire, analyse sémantique latente LSA, volume 8.1 of Studia Informatica Universalis, Hermann éditeurs, Paris, (2010)