学生普遍感到元素化合物知识虽然简单好懂,但易忘难用;教师复习元素化合物知识时普遍感到学生对知识点一般都基本了解,但往往却“只见树木不见森林”.最能说明这些现象的 Students generally feel that the knowledge of elemental compounds is simple and easy to understand, but it is difficult to remember; teachers generally feel that students generally have a basic knowledge of knowledge points when reviewing the knowledge of elemental compounds, but often “see only trees do not see the forest.” These are the best explanations of these phenomena. of