We briefly introduce the online learning environment INFACT, and then we describe its textual feedback system. The system automatically provides written comments to students as they work through scripted activities related to image processing. The commenting takes place in the context of an online discussion group, to which students are posting answers to questions associated with the activities. Then we describe our experience using the system with a class of university freshmen and sophomores.
Steven L. Tanimoto, Susan Hubbard, William Winn