“一定溶质质量分数的氯化钠溶液的配制”项目式教学——自制洗鼻液  

Project Teaching of Preparation of Sodium Chloride Solution with Certain Solute Mass Fraction:Self-Made Nasal Wash

作　　者：郭霞 GUO Xia(Daqiao Experimental School,Wuxi 214000,China)

机构地区：[1]大桥实验学校,江苏无锡214000

出　　处：《化学教育（中英文）》2021年第7期33-36,共4页Chinese Journal of Chemical Education

基　　金：江苏省中小学教学研究第十二期立项课题“中学化学教学关键问题的实施策略研究”(课题编号:2017JK12-L085)。

摘　　要：以"盐水洗鼻"中洗鼻液的配制为抓手和主要任务,通过学生将任务拆解成子任务并转化为化学问题,在合作探究、实际操作中,掌握溶质、溶剂及溶质质量分数之间的关系,配制出符合标准的洗鼻液。The main task is the preparation of a nasal wash solution which can be divided into several subtasks and used as a source of chemistry problems. The experiment will expose the students to general laboratory practices as well as the concepts of solute, solvent, and mass percentage, which help students form the rigorous experimental attitude and realistic spirit.

关 键 词：化学实验 自制洗鼻液 溶液配制 

分 类 号：G633.8[文化科学—教育学]