众所周知化学是一门以实验为基础的学科,通过演示实验和学生实验,可以使学生通过生动、直观的实验现象激发浓烈的学习兴趣,从而更有利于理解、巩固所学知识,并可提高观察、分析、解决问题的能力。现今大多数学生的自我动手实验能力较差,其中还包括一些学习较好的学生,他们仅限于“纸上谈兵”(做实验题目),而真正动手实验时,就无所适从。 It is well known that chemistry is an experiment-based discipline. Through demonstration experiments and student experiments, students can stimulate intense interest in learning through vivid and intuitive experimental phenomena, which is more conducive to understanding, consolidating what they have learned, and improving observation. Ability to analyze and solve problems. Most of today’s students have poor self-experienced experimental abilities, including some students who are better at learning. They are limited to “on paper” (doing experiment topics), and when it comes to hands-on experiments, they are at a loss.