Live recording phase

The live recording phase consists of the actual classroom lecture. The most important task to support in this phase is the capture of all relevant activity that will be useful for later review. We initially identified several relevant streams of activity in the classroom:

• what is heard in class (audio);
• what is seen in class (video);
• what is being written down by the teacher (public annotation); and
• what is being written down by individual students (private annotation);

To make the classroom an easy-to-use multimedia authoring environment, it must be equipped to capture these different streams of information without imposing extraneous work on the part of the participants -- that is, the capture of information must result as a natural by-product of normal classroom interaction.

We used cameras and microphones placed at various locations around the room to capture one or more video and audio streams, all of which were eventually digitized. This recording required no extra effort on the part of the participants.

• Tools for the teacher
• Tools for the student

Future Computing Environments
College of Computing at Georgia Tech University