《科学课程标准》指出:“小学科学课是以培养科学素养为宗旨的科学启蒙课程。”它是以科学探究为核心,以全体学生为主体,以探究活动过程为主渠道,以培养科学素养为宗旨的一门探究性学科。为此,在课堂教学活动中,应该突破传统的以学科知识点为中心和以讲授为主要形式的教学模式,充分发挥学生的主体作 The Science Curriculum Standard states: “Science in primary schools is a science-based curriculum aimed at cultivating scientific literacy.” "It is based on scientific inquiry and takes all students as the main body to explore the process of activities as the main channel in order to cultivate Scientific Literacy for the purpose of a research discipline. To this end, in the classroom teaching activities, we should break through the traditional knowledge-based point of the subject and to teach as the main form of teaching mode, give full play to the students as the main