Teachers' understandings and perceptions of Newton's third law of motion.

[摘要] The purpose of the research was to investigate South African teachers' understandings ofNewton's third law of motion, and their perceptions regarding the teaching of it. The treatmentof the law by South African, British and American textbooks was also examined. Teachers'ideas were investigated qualitatively by interviewing sixteen teachers and teachers-in-training.Alternative ideas found by other researchers were evident in some of the interviewees. andfurther alternative ideas were uncovered The research showed that the form in which ateacher stated the law correlated to their understanding of the law, Furthermore, experiencein teaching the law can result in improvement in the understanding and/or teaching methodsof a teacher. American textbooks contain the best presentation of the law; South Africantextbooks are adequate in their treatment. though containing errors. Recommendations havebeen made regarding teacher training. textbooks and education department policy.

[发布机构] University of the Witwatersrand