The major perspectives on problem solving of the twentieth century are reviewed--associationism, Gestalt psychology, and cognitive science. The results of the review on teaching problem solving and the uses of computers to teach problem solving are included. Four major issues related to the teaching of problem solving are discussed: (1) translation training; (2) schema training; (3) strategy training; and (4) algorithm automaticity. The use of computers and problem solving, problem solving environments, the use of artificial intelligence in problem solving, and the impact of computer programming on problem solving are considered. Included is a bibliography of 71 references. (KR)