“以考促练+翻转课堂”混合式教学模式在实验教学中的改革探索——以无机化学第一次实验教学为例

doi:10.3866/PKU.DXHX202201034

Abstract

Abstract:

We tried to restructure on the inorganic chemistry laboratory teaching by adopting the blended teaching mode of combining the test to promote practice with flipped classroom for the major of chemical engineering in our school. And the practical exploration of the first experiment was summarized from the current situation, reform ideas, project setting, specific implementation methods, cognitive levels, evaluation methods, teaching effects and problems. The combination of "test to promote practice" with flip classroom can not only reflect the "input" of teaching, but also ensure the "output" of teaching.

Key words: Inorganic chemistry laboratory teaching, Test to promote practice, Flipped classroom

Liping Wang, Yanli Liu, Xiaoli Zhou, Xiaojing Li, Huanfeng Wang, Yuling Li. Test to Promote Practice with Flipped Classroom: A Case Study of the First Experiment of Inorganic Chemistry Laboratory Teaching[J].University Chemistry, 2022, 37(11): 2201034.

Figures/Tables 7

	项目	考察标准	分值
			优	良	中	差
			8–10	6–8	4–6	2–4
1	使用去污粉或洗衣粉清洗简单玻璃仪器(烧杯或量筒或试管)	能否选用合适的方法熟练清洗仪器；操作是否规范；玻璃仪器是否洗干净(有层水膜，不挂水珠)；实验结束是否清理归位	姓名：成绩：
2	用量筒量取量取5 mL水	能否熟练地使用量筒量取液体；操作是否规范；体积是否准确；能否正确选取量筒的量程；实验结束是否清理归位	姓名：成绩：
3	从细口瓶中向试管里倒液体	能否熟练地从细口瓶中向试管里倒液体；操作是否规范；关键操作点是否注意到；实验结束是否清理归位	姓名：成绩：
4	滴管或滴瓶的使用：用滴管向试管中滴加液体	能否熟练地用滴管或滴瓶向试管中滴加液体；操作是否规范；关键操作点是否注意到；实验结束是否清理归位	姓名：成绩：
5	引流：从细口瓶中或烧杯中向容量瓶中转移液体	能否熟练地从细口瓶中或烧杯中向容量瓶中转移液体；操作是否规范；关键操作点是否注意到；实验结束是否清理归位	姓名：成绩：
6	向试管里加入固体粉末样品	能否熟练地向试管里加入固体粉末样品；操作是否规范；关键操作点是否注意到；实验结束是否清理归位	姓名：成绩：
7	向试管里加入固体颗粒样品	能否熟练地向试管里加入固体颗粒样品；操作是否规范；关键操作点是否注意到；实验结束是否清理归位	姓名：成绩：
8	酒精灯的使用	能否熟练地使用酒精灯；操作是否规范；关键操作点是否注意到(使用前检查，点燃，熄灭，酒精量多少合适？如何添加酒精？)；实验结束是否清理归位	姓名：成绩：
9	给试管中的液体加热	能否熟练地给试管中的液体加热；操作是否规范；关键操作点是否注意到(液体量，试管夹)；实验结束是否清理归位	姓名：成绩：
10	使用托盘天平称量2 g固体NaCl	能否熟练地给试管中的液体加热；操作是否规范；能否正确选择称量容器；关键操作点是否注意到；实验结束是否清理归位	姓名：成绩：

References 12

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实验编号	实验项目	实验学时	教学方式	教学周
一	安全教育，仪器的认领、洗涤和干燥，操作考查	4	教师讲解实验注意事项+以考促练+翻转课堂	4
二	由粗食盐制备试剂级氯化钠	4	教师讲解演示+学生练习+报告	5
三	硫酸铜的制备——溶解、蒸发、结晶和固液分离	4	教师讲解演示+学生练习+报告	6
四	五水合硫酸铜结晶水的测定——分析天平的使用，灼烧恒重	3	教师讲解演示+学生练习+报告	7
五	电解质溶液	3	教师讲解实验注意事项+以考促练+翻转课堂	8
六	氧化还原反应和配合物的生成与性质	3	教师讲解实验注意事项+以考促练+翻转课堂	9
七	铬、锰、铁、钴、镍、铜、锌、银、汞	3	教师讲解实验注意事项+以考促练+翻转课堂	10

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Test to Promote Practice with Flipped Classroom: A Case Study of the First Experiment of Inorganic Chemistry Laboratory Teaching

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References 12

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项目	考试内容	分值
1	使用去污粉或洗衣粉清洗简单玻璃仪器(烧杯或量筒或试管)	10
2	用量筒量取15 mL水	10
3	从细口瓶中向试管里倒液体	10
4	滴管或滴瓶的使用：用滴管向试管中滴加液体	10
5	引流：从细口瓶中或烧杯中向容量瓶中转移液体	10
6	向试管里加入固体粉末样品	10
7	向试管里加入固体颗粒样品	10
8	酒精灯的使用	10
9	给试管中的液体加热	10
10	使用托盘天平称量2 g固体NaCl	10