A typical first computer science course (CS1) introduces the student to coding conventions, variables, methods, control structures, conditionals, and the semantics of classes and objects. Advanced concepts of inheritance, polymorphism, abstract classes, interfaces, and their use in the design process, are covered in a second-level course (CS2).…

This paper lists the commands for three programs in Logo: Peppy and the Maze, Caterpillars and Butterflies, and the Robot Arm. (EW)

Modern computing systems exploit graphical user interfaces for interaction with users; as a result, introductory computer science courses must begin to teach the principles underlying such interfaces. This paper presents an approach to graphical user interface (GUI) implementation that is simple enough for beginning students to understand, yet…

Artificial intelligence (AI) techniques and virtual reality (VR) make possible powerful interactive stories, and this paper focuses on examples of virtual characters in three dimensional (3-D) worlds. Waldern, a virtual reality game designer, has theorized about and implemented software design of virtual teammates and opponents that incorporate AI…

This paper describes ToonTalk, a general-purpose concurrent programming system in which the source code is animated and the programming environment is a video game. The design objectives of ToonTalk were to create a self-teaching programming system for children that was also a very powerful and flexible programming tool. A keyboard can be used for…