Conceptual learning with multiple graphical representations: Intelligent tutoring systems support for sense-making and fluency-building processes

Thesis Committee: Vincent Aleven, Human-Computer Interaction Institute, Carnegie Mellon University (Chair) Nikol Rummel, Institute of Educational Research, Ruhr-Universität Bochum (Chair) Ken Koedinger, Human-Computer Interaction Institute, Carnegie Mellon University Richard Scheines, Department of Philosophy, Carnegie Mellon University Brian Junker, Department of Statistics, Carnegie Mellon University