基于虚拟角色对话的在线课程资源开发:以“分析化学实验”为例

The Development of Online Course via Virtual Role-Based Dialogue:The Case of Analytical Chemistry Experiment

针对在线课程易于浅层化的挑战,本研究创造性地引入虚拟角色对话用于在线课程的资源建设。研究以“分析化学实验”课程为例介绍了课程资源开发过程、“师问-生答”等多种师生对话设计以及学习者抽样访谈的质性评测。研究发现,相对于常见的独白讲授式教学方式,虚拟角色对话式教学方式能够显著提升在线课程学习者的积极情感因素,引发兴趣和维持注意力,分解认知负荷;教学对话给学生的代入感和认知冲突可以促进“冲突-反思-生成建构”的深度学习过程和高阶思维发展。初学者对虚拟角色对话教学方式的在线课程资源表现出了显著偏好,有利于其在学科入门课程和翻转课堂中应用。质性测评阶段的研究结论在课程投入使用后也得到了初步的量化验证,未来“师问-生陷入沉思”“生问-师难以定论”等对话设计有助于创新思维培养,是课程资源的改进方向。

In order to combat shallow learning in online study,virtual role-based dialogue was innovatively applied for the construction of online course materials in this research.Taking the case of analytical chemistry experiment as an example,the development of the online course materials,the design of different dialogue types and the qualitive evaluation based on sample interview were presented.According to this research,the online course with virtual role-based dialogue can notably improve positive emotional factors,help to attract learners’interests,maintain their attention and decompose their cognitive load.The sense of immersion and cognitive conflict can induce deep learning process of“conflict-reflection-construction”and thus strengthen higherorder thinking skills of the learners.It is also found that beginners showed a significant preference for online course resources with virtual role-based dialogue,which reveals its value in the application in introductory courses and flip classes.The above conclusions were further verified in its preliminary application via a questionnaire.In addition,more challenging dialogues between students and teachers should be developed,for the inspiration of innovative thinking and creativity in the further improvement of the online course.