在化学教学中演示实验是教师传授知识的重要手段,是学生获得感性知识的必由之路。布鲁纳认为:“认识是一种过程,而不是一种产品。”从这一角度看,演示实验又是培养学生探索精神和创新能力的一块基地。演示实验的过程中,教师应当将学生推到一个积极主动的探索者的位置上去,使演 Demonstrating experiments in chemistry teaching is an important means for teachers to impart knowledge and is the only way for students to obtain perceptual knowledge. Bruner believes: “Awareness is a process, not a product.” From this perspective, the demonstration experiment is also a base for cultivating students’ exploration spirit and innovation ability. In the process of demonstrating the experiment, the teacher should push the student to the position of a proactive explorer.