GeoGebra用于酸碱滴定曲线精准绘制及滴定终点误差计算  

Accurate Plotting of Acid-Base Titration Curve and Calculation of Titration Endpoint Errors by GeoGebra

作　　者：张红医[1,2] 何珺瑶 石志红 Hongyi Zhang;Junyao He;Zhihong Shi(College of Chemistry and Materials Science,Hebei University,Baoding 071002,Hebei Province,China.;Teaching Institute for Chemistry,Hebei University,Baoding 071002,Hebei Province,China.)

机构地区：[1]河北大学化学与材料科学学院,河北保定071002 [2]河北大学化学教学研究所,河北保定071002

出　　处：《大学化学》2024年第1期340-350,共11页University Chemistry

基　　金：2021年河北省课程思政示范课程;河北省研究生教育教学改革研究项目(YJG2023005,YJG2023003);河北省教育厅科学研究计划项目(ZD2019089)。

摘　　要：酸碱滴定曲线和滴定终点误差是分析化学课程中酸碱滴定章节的重要教学内容。针对此内容提出了“强模型化、融信息化、增可视化和去公式化”的总教学策略,形成了以电荷平衡关系式、稀释定律和形态分布系数等为底层逻辑的“三步模型法”滴定方程推演过程;采用GeoGebra软件为信息化手段,实现了滴定方程的可视化和数字解。Both acid-base titration curve and titration end point error are two important teaching contents in the chapter of acid-base titration in analytical chemistry textbook.In view of the above two problems,it is proposed that a new general teaching strategy of‘strengthening of modeling capability,integrating of information technology into analytical chemistry,enhancement of visualization and avoiding of formularization memory’.The strategy is carried out in two steps.Specifically,in the first step,the acid-base titration problem is converted into a mathematic model by means of three underlying logic tools,namely charge balance equation,dilution law and distribution coefficient of species.The building modeling process is referred to as three-step modeling method.In the second step,visualization and digital solution on the built models are realized by the aid of GeoGebra software.

关 键 词：滴定问题模型化 信息技术课程融入 规律可视化增强 去公式化 GeoGebra软件 

分 类 号：G64[文化科学—高等教育学] O651[文化科学—教育学]