Reviews two books, the first of which explores how children conceive possible ways to solve problems and differentiate among real, possible, and necessary solutions. The second book explains the construction of knowledge as a dialectical tension of the opening of new possibilities constrained by increasingly stronger necessities from which a…

Reviews Dreyfus's writings about human cognition and artificial intelligence (AI), and explains some of the implications of his position, particularly in education. Topics include Dreyfus' critique of AI, representationlaism and expertise, technology and its role in instruction, computer-assisted instruction, and intelligent tutoring systems. (JKP)