1. The ideal of standards and the reality of schools: Needed research
2. BEETH, M. Systemic reform in mathematics and science education in Ohio (USA): 1991-2000. Proceedings of the Third International Conference on Science Education Research in the Knowledge Based Society. Edited by: Psillos, D., Kariotoglou, P., Tselfes, V., Bisdikian, U., Fassoulopoulos, G., Hatzikraniotis, C. and Kallery, M. Vol. 1, pp.198–200. Thessaloniki, Greece: Aristotle University of Thessaloniki.