化学习题教学的体会定西中学杨戈中一、在习题内开掘提炼学生做习题时，往往有就题论题的倾向，缺乏对习题的深层次开掘。所谓深层次开掘，是指对习题本质的、细节的、潜在的、差异性的因素进行细致的分析。通过这种分析，使学生更进一步地弄清题目中的数量关系，从而为正... Learning the Teaching of Learning Problems Dingxi Middle School Yang Gezhong 1. When digging and refining students to do exercises in the exercises, they tend to have problems in the topics and lack deep exploration of the exercises. The so-called deep-level digging refers to a detailed analysis of the nature, details, potential, and different factors of exercise. Through this analysis, students will be able to further understand the quantitative relationship in the title, and thus be positive...