论文部分内容阅读
以提高学生学科素养为宗旨的化学新课程改革,使化学教科书的功能发生了根本性转变.教科书不仅要为学生的学习提供范例和素材,更要促进学生学习方式的转变.在必修一专题二第二单元“金属钠的性质和应用”中,演示实验和罗列的方程式均体现了编者的独具匠心,重视培养学生的学科素养,体现学科思想.一、竞争反应思想在钠的性质部分,有很多地方都体现了竞争反应的思想.如,Na和H_20、HCl的反应,Na_20,Na_2O_2与H_2O、CO_2的反应等.1.Na和H20、HCl的反应学生在观看了Na和H_2O反应的实验以后,老师
The reform of the new chemistry curriculum aiming at improving the subject quality of students has fundamentally changed the function of chemistry textbooks. Textbooks should not only provide students with examples and materials for learning, but also must promote the transformation of students’ learning methods. The second unit, “Nature and Application of Metallic Sodium,” demonstrates the editor’s originality, emphasizing the cultivation of students’ subject quality and embodying the disciplinary thinking. First, the nature of competition in the nature of sodium, There are many places that embody the idea of competitive reactions. For example, reactions of Na and H_20, HCl, reactions of Na_20, Na_2O_2 with H_2O, CO_2, etc. 1. Reaction of Na and H20, HCl Students are watching reactions of Na and H_2O After the experiment, the teacher