Foundations of intelligent tutoring systems / Hugh L. Burns and Charles G. Capps -- The expert module / John R. Anderson -- The student modeling module / Kurt VanLehn -- Curriculum and instruction in automated tutors / Henry M. Halff -- The environment module of intelligent tutoring systems / Richard R. Burton -- The role of human-computer interaction in intelligent tutoring systems / James R. Miller -- Pragmatic considerations in research, development, and implementation of intelligent tutoring systems / William B. Johnson -- Evaluating ITS / David C. Littman and Elliot M. Soloway -- Directions for research and applications / J. Jeffrey Richardson