General Issues Guided Discovery Tutoring - Mark Elsom-Cook Interface Issues for Guided Discovery Learning Environments - Claire O'Malley Generative Student Models - Diana Laurillard The Limits of Diagnosis and Remediation Architectures A Tutor for Procedural Skills - Mark Elsom-Cook and Fiona Spencley Architecture of a Knowledge-Based Music Tutor - Simon Holland and Mark Elsom-Cook Extended Computer-Assisted Learning - Mark Elsom-Cook Minimalism in Guided Discovery Teaching Dialogues Analysis of a Tutorial Dialogue - Mark Elsom-Cook Freedom of Speech - Alison Petrie-Brown The Concepts of Guidance and Dialogue in Intelligent Tutoring Arguing with the Tutor - Michael Baker Student Modelling Why Bugs Are Not Enough - Sara Hennessy Formal Semantic Systems and Student Modelling - Pat Fung Generating Critical Problems in Student Modelling - Rick Evertsz and Mark Elsom-Cook