兴趣,是直接推动学生主动学习的内在动力。它促使学生去追求知识,探索科学的奥秘。中学生刚开始学化学时,看到鲜明生动的实验,听了通俗易懂的讲解,对化学课是很感兴趣的。但是初学的学生,往往在解题中出现几次差错以后,就降低了学习兴趣。为了帮助学生掌握化学计算规律, Interest, is to directly promote the active motivation of students to learn. It urges students to pursue knowledge and explore the mysteries of science. When high school students just started to learn chemistry, they saw vivid experiments and listened to easy to understand explanations. They were very interested in chemistry classes. However, beginner students, often after a few mistakes in the problem-solving, it reduces the interest in learning. In order to help students master the law of chemical calculation,