In this dissertation, the author presents two projects regarding teaching strategies that apply to an intelligent tutoring system (ITS). The author applied multiple-solution teaching methods to the ITSs. The first project is an ITS that aims to help college students learn how to use Computer-Aided-Design (CAD) software, FreeCAD ITS. The second…

While the changing nature of design activity is a topic supported by a range of popular and academic publications, the role that design tools have taken in that change is less well studied. The tools used in the trade, both by industrial designers and mechanical engineers, have undergone a rapid transformation in the last fifty years. The research…