问题解决在线学习活动中的任务设计研究

The Research of Task Design in Problem-solving Learning Activities

学习任务是问题解决学习活动设计的核心，是问题解决学习得以开展的前提条件。该研究分析了问题解决学习活动中任务的基本特征，并提出由问题解决维度和活动操作维度构成的任务设计结构。实证研究部分利用准实验研究的方法，验证了任务设计结构的有效性。实证研究的结论认为，任务设计结构能够增强学习者在线问题解决学习的效果，并提升学习者对学习的主观感知。最后，结合具体的设计经验，研究给出了问题解决学习任务设计的具体策略。

Learning tasks are core elements of problem-solving learning activities. It is the premise condition of problem-solving collaborative learning. This study analyzes basic characteristics of learning tasks in problem-solving learning activities. In response to these characteristics， the study constructs task designing structure which consists of cognitive processing and group collaboration. Quasi-experimental research verifies effectiveness of the task designing structure. It concluded that the task designing structure can improve performance of problem solving learning and improve the learner's subjective perception of learning activities. Finally， the study gives designing strategies of learning tasks and discusses the research works in the future.