在课堂教学中,演示实验能引导学生从具体现象出发,由表及里,由此及彼逐步认识事物的本质,也有利于巩固学生学得的知识。下面谈谈在溶胶课中采用实验讲授新知识的一些做法和体会。 In classroom teaching, demonstration experiments can guide students to start from a specific phenomenon, from the table to the inside, and thus gradually understand the nature of things, but also help consolidate the students’ knowledge. Let’s talk about some of the practices and experiences of using experimental teaching of new knowledge in Sol Class.