【摘 要】
：
在大规模在线学习中,小群体网络结构从中观视角反映出学习者之间社会交互、资源分配、知识流动的特点,对促进个体和集体学习绩效有重要意义.本文以2017年至2020年开设的一门大型定制MOOC为实验场域,利用社会网络分析法和内容分析法研究学习者自发形成的小群体网络结构特征和演化规律.研究发现存在轮式、环式、Y式和山式四类小群体网络结构,并分别从组织关系特征和知识建构水平两个维度进行差异和演化分析.研究认为不同学习主题类型直接影响网络结构的形成与发展;四年内存在网络结构发展的“沉寂期”,是采取干预策略的关键阶段;
【机 构】
：
江苏师范大学 智慧教育学院,江苏 徐州,221000
论文部分内容阅读
在大规模在线学习中,小群体网络结构从中观视角反映出学习者之间社会交互、资源分配、知识流动的特点,对促进个体和集体学习绩效有重要意义.本文以2017年至2020年开设的一门大型定制MOOC为实验场域,利用社会网络分析法和内容分析法研究学习者自发形成的小群体网络结构特征和演化规律.研究发现存在轮式、环式、Y式和山式四类小群体网络结构,并分别从组织关系特征和知识建构水平两个维度进行差异和演化分析.研究认为不同学习主题类型直接影响网络结构的形成与发展;四年内存在网络结构发展的“沉寂期”,是采取干预策略的关键阶段;中心成员的学习能力影响网络结构的知识建构水平;不同网络结构的生长能力具备差异,环式和Y式需要重点关注.最后,研究结合大规模在线学习场域提出优化建议:即针对轮式结构,提供学习支持,形成深度对话;针对环式结构,促进双向交互,提供学术指导;针对Y式结构,建立角色任务,优化交互联结;针对山式结构,整合研讨资源,发挥中心优势.
其他文献
We live in an age where discussing our feelings is encouraged. But when does it all become too much? When can sharing become oversharing on social media?
1 I have made many new friends in the five years when I have been in Shanghai. During the four years of my undergraduate studies, I spent most of my time with friends who were from northern China, as I am. In graduate school this year, however, my friends
1 Every single student at some small schools in remote Australian communities needs their school to provide them with food so they have enough to eat.
One of Switzerland\'s most popular skiing areas has been covering mountain areas with cloth material in an effort to reduce ice melting over the summer. Workers have placed large blankets of material around Mount Titlis, a skiing area near the Swiss mou
The judge was an old, kind man, but his face was very serious as he looked at me. He asked a number of men to tell me what they had seen and found the night before.
He ran quickly out of the laboratory, and I watched him as he left the island in his boat and sailed away across the sea.
How do you relax after a stressful day in the office? There are many ways to refresh yourself, but the best solution lies in the great outdoors. It takes a little effort to get there, but it undoubtedly makes you relaxed. It is forest bathing.
1 Chinese seem to bring their happiness to the people around the world during festi-vals, especially in the Mid-Autumn Festival. So-called“The moon, growing full now over the sea, brightens the whole of heaven”exactly conveys such an idea.
We stayed for a few days in Paris on the way home, and Elizabeth wrote to me at our hotel. This is what her letter said:My dearest Victor,rnI am so happy to know that you will soon be home. But I am afraid that Henry\'s death is not the only reason for
传统对比修辞学研究把英语修辞作为典范,强调英语修辞地位高于非英语修辞,因而遭到学者们的普遍反对.有些西方学者虽然认为汉英修辞模式具有同等地位,但在其试图为汉语语篇修辞地位辩护的过程中,往往片面强调两种修辞模式趋同,而忽略了汉语特有的修辞特征.本文从比较修辞学视角出发,对汉语段落的修辞模式进行了研究.研究内容包括我国初、高中语文教材中的段落写作指南和学生汉语论说文作文中的段落.研究结果显示:我国中学语文教材中没有包含系统的段落写作理论及指南;汉语作文中的“主题句”不同于英语,段落多为非归纳演绎式,且运用了较