This manual describes the CALM TV graphics interface, a low-cost means of producing quality graphics on an ordinary TV. The system permits the output of data in graphic as well as alphanumeric form and the input of data from the face of the TV using a light pen. The integrated circuits required in the interface can be obtained from standard…

Although technological innovations have the capability to significantly change how scientific investigations are done and greatly enhance the teaching and learning of science, its use is no more effective than any other resource or innovation when researched-based effective teaching practices are not followed. This paper reviews established…

This document explains the TUTOR language which is used by teachers to create or author lesson materials on the PLATO IV computer-based education system. After an introductory section, the second section explains how to display text and line drawings to students. The third section introduces subroutines, and it is followed by explanations of…