初中学生正处于兴趣广泛、求知欲旺盛的时期。教师如果从化学课的起始阶段就注意激发和培养学生对化学学习的兴趣,并因势利导,使学生把兴趣转化成乐趣,进而转化成志趣,那么,就能保持学生对化学学习经久不衰的求知欲。现行中学地理教学大纲中也指出:“培养学” Junior high school students are in a period of widespread interest and curiosity. If the teacher should pay attention to stimulating and cultivating students' interest in chemistry learning from the initial stage of chemistry class, and making the best use of them, they can turn interest into fun and then translate into interest, then, students will be able to keep their chemistry learning enduring Curiosity. The current middle school geography syllabus also pointed out: “training study ”