一、加强化学实验,培养学生动手和动脑能力化学是一门实验科学。化学概念的形成和定律的建立,离不开实验事实的探讨和论证。中等教育阶段,化学实验对于学生掌握知识,形成能力具有重要意义。教学中,在认真做好课本要求的学生必做实验的前提下,大力加强学生选做实 First, to strengthen chemical experiments and cultivate students’ hands-on and brain ability chemistry is an experimental science. The formation of the concept of chemistry and the establishment of laws cannot be separated from the discussion and argumentation of experimental facts. In secondary education, chemistry experiments are of great significance for students to master knowledge and form their abilities. In the teaching, under the premise that the students who are doing a good job in textbooks must do experiments, the students should be strongly encouraged to do so.