科学课教师要把课教得直观、生动,让学生观察仔细,积极参与到学习活动中去。材料不足是制约小学科学课教学的根本所在。怎样克服这些不足呢?我结合“科学大环节”教学,对教材进行适当重组,“给学生足够的时间和空间,对周围事物进行认真、细致、有目的、有计划地研究,让学生自主学习,合作学习,充分体验,感悟科学探索的过程。” Science class teachers should teach intuitive, vivid, so that students observe carefully and actively participate in learning activities. Insufficient materials is the basic constraint of science teaching in primary schools. How to overcome these shortcomings? I combined with the teaching of “Scientific”, the proper reorganization of teaching materials, "give students enough time and space, around the things carefully, meticulously, purposefully and systematically, allowing students to learn on their own , Cooperative learning, full experience, insight into the process of scientific exploration.