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- New Mathematics Education Research and Practice, Sense Publishers, Rotterdam, (2006)
- Trends in Cognitive Sciences 9(1):6-10 (2005)
- Mathematics and Virtual Culture: an Evolutionary Perspective on Technology and Mathematics EducationEducational Studies in Mathematics (1999)
- (2006)
- (2005)
- Oxford University Press, New York, NY, (1990)
- (2005)
- (2006)
- (2005)
- (2006)
- Harper \& Row, New York, (1973)
- Selected Papers from the Annual Conference of Didactics of Mathematics 1997, Osnabrueck, (1999)
- American Educator 6(11):38--46 (1991)
