Graphical extensions to online problem sets and tutors

Abstract

Adding a graphical interface to online problem sets and tutors enables the addition of a variety of different types of graphical problems to interactive learning systems. The graphical interface allows professors and students to sketch graphs, draw shapes, and label objects using a mouse-based interface. A text-based I/O allows professors to create graphical problems, set up the solutions, and provide interactive feedback. Students working on a problem can be given hints, check their solution, or see the correct solution. The graphical extension also lays the groundwork for more complex graphical problems involving connectivity or other rules between graphical objects.