我在构思“钠”一节的课堂教学时 ,想改变传统的教学模式 ,将学生置于教学主体 ,使学生进行参与性和体验性的学习 ,因此采取了自主探究的教学策略。在设计这节课时 ,让学生通过直接认识金属钠 ,触动他们认识金属钠的主动性及好奇心 ,驱动学生的想象力 ,从学生中产生要探究的问 When I was conceiving the teaching of “Na” in class, I wanted to change the traditional teaching model and put the students in the subject of teaching so that students could participate in participatory and experiential learning. Therefore, I adopted self-inquiry teaching strategies. In the design of this class, students were asked to directly understand the metal sodium, touched their initiative and curiosity to understand the metal sodium, to drive the imagination of students, and to create questions for students to explore.