化学是一门以实验为基础的科学,对比实验已经成为最为常见的教学手段之一。那么,什么样的实验是对比实验,为什么要做对比实验,什么时候需要做对比实验?对于处于化学启蒙阶段的初中生,如何给出合理而又浅显的解释呢?教学解释是说出某个教学行为的道理,给出它的理由,为行为赋义的过程。在具体的教学过程中,教师经常会巧妙地设计一些对比实验,帮助学生深刻理解和掌握教学内容,同时又能激发学生学习化学的好奇心和积极性,培养学生 Chemistry is an experiment-based science, and comparative experiments have become one of the most common teaching methods. So, what kind of experiments are comparative experiments, why do comparative experiments, when do you need to do comparative experiments? For junior high school students in the chemical enlightenment stage, how to give a reasonable and plain explanation? The teaching explanation is to say something The truth of teaching behavior, given its reasons, the process of sacrificing behavior. In the specific teaching process, teachers often skillfully design some comparative experiments to help students understand and master the teaching content, but also stimulate students to learn curiosity and enthusiasm for chemistry, students