基于“学生中心”理念的混合式教学研究——以食用醋总酸度的测定实验为例  

Study on Blended Teaching Based on Concept of“Student-centered”——Taking Determination of Total Acidity of Edible Vinegar as An Example

作　　者：刘荣军 罗志辉 周能 李家贵 韦庆敏 LIU Rong-jun;LUO Zhi-hui;ZHOU Neng;LI Jia-gui;WEI Qing-min(Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology,Colleges and Universities Key Laboratory for Efficient Use of Agricultural Resources in the Southeast of Guangxi,College of Chemistry and Food Science,Yulin Normal University,Guangxi Yulin 537000,China)

机构地区：[1]广西农产资源化学与生物技术重点实验室,广西高校桂东南特色农产资源高效利用重点实验室,玉林师范学院化学与食品科学学院,广西玉林537000

出　　处：《广州化工》2022年第14期268-270,共3页GuangZhou Chemical Industry

基　　金：广西高等教育本科教学改革工程(NO.2020JGB317);广西自然科学基金资助项目(NO.2019GXNSFAA245026)。

摘　　要：食用醋总酸度的测定实验中,传统的单一线下讲授教学模式在仪器操作规范化和实验结果计算公式的推导中存在不足。本学院分析教学团队以“学生中心”,对食用醋总酸度的测定实验进行了线上线下混合式教学。通过线上学生自主观看教师录制的仪器操作视频,线下组织学生进行仪器操作比赛和分组讨论推导实验结果计算公式,引导学生开展自主、合作和探究性学习,激发了学生的学习热情,提高了学习效率和常规仪器操作的规范性。In the experiment of measuring the total acidity of edible vinegar,the traditional single offline teaching teaching mode is insufficient in teaching the standardized operation of the instrument and the derivation of the calculation formula of the experimental results.The analytics teaching team conducted a mixed online and offline teaching on the measurement experiment of the total acidity of edible vinegar with the“student-centered”.Through online students watching the operation videos recorded by teachers independently,offline organizing student to conduct operation competitions and group discussions to deduce the calculation formula of experimental results students were guided to carry out independent,cooperative and exploratory learning,students’enthusiasm for learning was stimulated,and learning efficiency and standardization of routine instrument operation were improved.

关 键 词：学生中心 线上线下混合式教学 总酸度的测定 教学改革 教学效果 

分 类 号：G642.0[文化科学—高等教育学]