Reviews projects aimed at increasing access to software in a variety of languages and cultures, particularly the European Community project EPES (European Pool of Educational Software) that involves 12 nations and 15 languages. Translation methodology is described and possible barriers, including graphics and copyright issues, are considered.…

Discusses conceptual difficulties in the field of geometrical optics and describes RAY, a microcomputer-based graphic interface that was designed to serve as a teaching aid and as a learning environment. The ability to combine theory and formal representations with real demonstrations and experiments is discussed. (Contains seven references.) (LRW)