面向工程教育专业认证的有机化学实验微课混合式教学模式探索

doi:10.3866/PKU.DXHX202005016

Abstract

Abstract:

According to the latest requirements of engineering education professional certification of chemical engineering and technology specialty on organic chemistry laboratory, current situation and problems of organic chemistry laboratory in Jianghan University are discussed from the perspective of teaching mode, teaching content, teachers and students. This paper has explored the blended teaching mode combining the online teaching with the traditional teaching. This teaching mode is successfully applied to the course of organic chemistry laboratory. It has been proved that this teaching mode improved the teaching quality, enhanced the classroom efficiency, achieved the teaching objectives, as well as met the requirements in the engineering education professional certification.

Key words: Engineering education professional certification, Organic chemistry laboratory, Micro-course, Blended teaching

Liang Wang, Fan Yu, Yumin Zhang, Zhen Lu, Wangming Peng, Siqian Hu. Exploration of Blended Teaching Mode Based on Micro-Course of Organic Chemistry Experiment for Engineering Education Professional Certification[J].University Chemistry, 2020, 35(12): 158-163.

实验类型	实验项目	学时	学习方式	课时占比
基础实验	有机化学实验的一般知识	4	线下学习	58.3%
	熔点测试	4	线下学习
	蒸馏和沸点测定	4	线下学习
	重结晶提纯法	6	线下学习
	减压蒸馏	6	线下学习
	水蒸气蒸馏	4	线下学习
制备实验	1-溴丁烷的制备	4	线下学习	29.2%
	环己烯的制备	4	线下学习
	乙酰苯胺的制备	6	线下学习
综合实验	生物碱的提取	6	线下学习	12.5%

实验类型	实验项目	学时	学习方式	课时占比
基础实验	有机化学实验的一般知识	0	线上学习	25.0%
	熔点测试	0	线上学习
	蒸馏和沸点测定	0	线上学习
	萃取和分液	0	线上学习
	洗涤与干燥	0	线上学习
	重结晶提纯法	4	线上学习为主，线下学习为辅
	减压蒸馏	4	线上学习为主，线下学习为辅
	水蒸气蒸馏	4	线上学习为主，线下学习为辅
制备实验	1-溴丁烷的制备	4	线上学习为辅，线下学习为主	54.2%
	环己烯的制备	4	线上学习为辅，线下学习为主
	乙酰水杨酸制备	6	线上学习为辅，线下学习为主
	呋喃甲醇和呋喃甲酸的制备	6	线上学习为辅，线下学习为主
	2-甲基-2-丁醇的制备	6	线上学习为辅，线下学习为主
综合实验	生物碱的提取	4	线上学习为辅，线下学习为主	20.8%
综合实验	尼龙66的制备	6	线上学习为辅，线下学习为主	20.8%

实验阶段	时间	学生任务点	教师任务点
实验前	30分钟	认真听讲，做好笔记	讲解实验原理，关键操作步骤，注意事项，实验任务点
实验中	15分钟	称取药品，搭建装置，建立反应	指导规范性取用药品，搭建实验装置，提高实验效率
	40分钟	制备乙酰水杨酸粗产品	指导观察实验现象，做好实验记录
	25分钟	减压过滤，收集粗产品	指导布氏漏斗和抽滤瓶的正确安装水泵和安全瓶的正确使用
	15分钟	饱和NaHCO₃溶液中和，pH试纸检测酸碱度	指导pH试纸的使用，检测酸碱度
	30分钟	过滤，酸化，减压过滤，收集纯产品	指导产品的洗涤和收集
	20分钟	配制乙酰水杨酸溶液，FeCl₃溶液检验纯度	指导溶液配制，对照实验
	45分钟	重结晶提纯产品	指导重结晶和热过滤操作
	35分钟	红外灯干燥，熔点仪测试熔点	指导产品的熔点测试及其分解情况
	15分钟	计算产率，清洁卫生	检查实验结果和清洁卫生
实验后	课后	完成纸质实验报告，上传批阅后的报告	线下批阅报告，检查上传情况

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Exploration of Blended Teaching Mode Based on Micro-Course of Organic Chemistry Experiment for Engineering Education Professional Certification

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