Teaching Science in Five Countries

Results from the TIMSS 1999 Video Study
Roth, Kathleen J. Druker, Stephan L. Garnier, Helen Lemmens, Meike Chen, Catherine Kawanaka, Takako Rasmussen, Dave Trubacova, Svetlana Warvi, Dagmar Okamoto, Yukari Gonzales, Patrick Stigler, James Gallimore, Ronald
NCES , Washington DC (2006)
Results from the TIMSS 1999 Video Study of eighth grade science teaching