《科学课程标准(3~6年级)》明确地提出了“科学学习要以探究为核心”的基本理念。探究既是科学学习的目标,又是科学学习的方式。以探究为核心,需要教师由教学的操纵者、主持者转变为学习的组织者、引导者、促进者、合作者。所以,在实际教学中,尝试以小组合作的形式开展探究活动,使每一 “Science Curriculum Standards (Grades 3-6)” clearly put forward the basic idea that “science learning should be based on inquiry”. Exploration is not only the goal of scientific learning, but also the way of scientific learning. To explore as the core, teachers need to change from the teaching of the manipulator, the organizers into learning organizers, guides, promoters, collaborators. Therefore, in practical teaching, we try to carry out inquiry activities in the form of group cooperation so that each