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5. What are students' conceptions about energy: A cross-age study. University of Haifa, February 1993, p. 79. (HEBREW)
6. Cognitive factors influencing on learning the energy concept. Abstracts of the 5th European Conference for Research on Learning and Instruction. Universite de Provence, September 1993, p. 91.
7. Students' motivational traits in science: a cross-age study. Hebrew University, Jerusalem, February 1995, p. 116. (HEBREW)
8. Students' interest in physics: A cross-age study in high schools in Israel. Bath University,, England, September 1995, p.135.
9. The need for change in elementary school teacher training: The case of the energy concept. Wingate Institute, Israel, July 1996, p. 353.
10. Learning kinematics with a V-Scope. GIREP-ICPE Conference. Ljubljana University, Slovenia, August 1996, p. 33.
11. Differences in motivation towards science subjects among kibbutz and urban high school students. Abstracts of the 7th European Conference for Research on Learning and Instruction. Hilton Hotel, Athens, August 1997, p. 363.
12. A simple demonstration of the thermal linear expansion of a solid and measurement of its thermal expansion coefficient. GIREP-ICPE Conference. Gerhard Merkator University of Duisburg, Germany, August 1998, p. 44.
13. A survey of conceptions of energy of pre-service high school biology teachers. Symposium: Education of Science Teachers. Maria Curie Sklodowska University, Naleczow, Poland, October 1998, p. 37.
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16. Assessing students’ basic astronomy conceptions from junior high school through university. Proceedings of the Third International Conference of the European Science Education Research Association, Aristotle University of Thessaloniki, Greece, August 2001, p. 668.
17. Informal science education in Israel: Teaching elementary school children qualitative physics concepts through inquiry based activities. Abstracts of the GIREP 2002 International Conference, Lund University, Sweden, August 2002, p. 16.
18. Assessing students’ basic astronomy conceptions from junior high school through university. Proceedings of the 2002 Conference of the Israeli Society of Research in Education, Bar Ilan University, Ramat Gan, October 2002, p. 54.
19. Academic advisor of the book: Simple Physics Demonstrations (2002). Editors: P. Gorsky and R. Nitzani-Hendel. Funded by the Amos de Shalit Israeli Center for Science Teaching (HEBREW).
20. Informal science education in Israel: Reasons for participation and impact on attitudes. Abstracts of the Fourth International Conference of the European Science Education Research Association, Nordwijkerhout, The Netherlands, August 2003, p. 194.
21. University students’ study strategies for a distance education physics course. Abstracts of the GIREP 2004 International Conference, Technical University of Ostrava, Czech Republic, July 2004, p. 61.
22. Israeli students’ interest in physics and its relation to their attitudes towards science and technology and to their own science classes. Proceedings of the XIth IOSTE Symposium, Marie Curie Sklodowska University, Lublin, Poland, July 2004, p. 225.
23. Learning physics and chemistry: Distance and campus-based university students' dialogic behavior. Abstracts of the Fifth International Conference of the European Science Education Research Association, Barcelona, Spain, August 2005, p. 87.
24. Teaching future teachers basic astronomy concepts: Seasonal changes. Abstracts of the Fifth International Conference of the European Science Education Research Association, Barcelona, Spain, August 2005, p. 1012.
25. Teaching future teachers basic astronomy concepts. Abstracts of the GIREP 2006 International Conference, University of Amsterdam, The Netherlands, August 2006, p. 72.
26. Factors affecting junior high school students' interest in biology. Abstracts of the 2007 World Conference on Science & Technology Education, Perth, Australia, July 2007 (in CD).
27. Factors affecting junior high school students' interest in biology. Abstracts of the Sixth International Conference of the European Science Education Research Association, University of Malmö, Sweden, August 2007, p. 194