In chapter four , i introduce learning theory of constructivism and some correlative theories that are the foundation of teaching model of dissertation cooperation on science lesson . in chapter five , first , i explain experiment design and basic process of experiment and outline of operation and facture of net and so on , then present analysis and opinion of experimental result , finally , i bring forward some advice of teaching on science lesson according as experience and lesson of experiment research 在“第四章建构主义理论及相关理论简介”中,介绍了科学课的专题协作教学模式的理论基础? ?建构主义学习理论及相关的一些理论。在“第五章科学课的专题协作教学模式的实践”中,首先说明了专题协作教学模式的实验设计、实验的基本过程和操作要点及网页的制作等;然后给出了测试的评价与结果分析;最后,根据本实验研究的经验和教训,针对目前的教学弊端,对科学课的教学提出一些有益的教学建议。