Presents test cases to adequately test the "triangle program" described in part 1 (appearing in volume 42 of this journal). Discusses test case design and design techniques, differentiating between testing (showing that errors present) and debugging (finding where/what errors are and correcting them). Suggests testing be incorporated into…

A discussion of computer errors and round-offs is given with the conclusion that attempts to get rid of these almost always result in generating more errors. (MN)

A light box is an apparatus designed to show the logical states of the User Port Pins of a PET microcomputer. Details of this aspect of computer studies are provided to introduce students to the possibilities of microprocessor control. Details of PET User Port interface and sample programs are included. (Author/JN)

Presents a program in Level II BASIC for a TRS-80 computer that simulates a Turing machine and discusses the nature of the device. The program is run interactively and is designed to be used as an educational tool by computer science or mathematics students studying computational or automata theory. (MP)

The history and current nature of CONDUIT, an organization that reviews, tests packages and distributes computer-based materials, is presented. Although many of the units available are designed for collegiate instruction, some can be used at the high school level, particularly for enrichment studies for juniors and seniors. (MP)

Discusses a semantic network of computer literacy topics and a computer implementation (ACCOLADE) for the PLATO IV system. ACCOLADE was used by learners as a search tool for accessing knowledge about a particular topic in the computer literacy knowledge space and as a mechanism to reveal the structure of that knowledge space. References are…

Because previous research by Bayman and Mayer (1983) suggests that individuals who attempt to learn their first computer language develop a variety of misconceptions of the meanings of individual programming statements, this study investigated whether it is possible to enhance beginning programmers' understanding of the programming statements…

Suggests a moving pictorial tool to help teach principles in the bubble sort algorithm. Develops such a tool applied to an unsorted list of numbers and describes a method to derive the run time of the algorithm. The method can be modified to run the times of various other algorithms. (JN)

The use of the Prolog programing language is promoted as the language to use by anyone teaching a course in relational databases. A short introduction to Prolog is followed by a series of examples of queries. Several references are noted for anyone wishing to gain a deeper understanding. (MP)

Describes a preliminary investigation in which students were taught BASIC programing using deliberately bugged programs, with program descriptions and photographs of screen as it should look if programs were running correctly. Includes educational issues involved, constraints of the investigation, sample programs, subjective/statistical analyses,…

Discusses the role and use of color in instructional computing. Suggests teachers consider: (1) how color symbolically represents content and reinforces organization of lessons; (2) how color enhances a lesson's style and short/long-term memory; and (3) cost of classroom color computer assisted lessons. (Author/JN)

An elementary computer programing language designed to help the student resolve very basic and specific conceptual difficulties is described. The introduction and implementation of this language in an actual didactic situation is included. (Author/MK)

At a symposium on computers and colleges, speakers addressed a variety of topics relating to the current status of computing, its effect on students, its academic implications, and its technical details. Small colleges and networks were the main foci for the first speakers. The role of amateurs and the variation of user services were also…

Describes a computer literacy program in a business/economics department designed to help students apply computer technology to their chosen fields rather than to develop special skills as programers or systems managers. Includes program goals/objectives and a list of computer programs (with brief descriptions) used in the various economics…