基于网络的对话教学：一项实证研究

An Empirical Study on Dialogue Instruction in Web-based Environment

教学本身是一种充满活力的对话实践活动，通过这种活动，可以促使学习者进行建构性、合作性、反思性学习。在网络学习环境中并不会因为师生分离而改变教学的对话本质，相反，网络教学中不仅需要对话，而跨越时空的高质量的深层次对话正是网络教学质量提升的根本。因此，研究网络教学中的对话特征，探求促进对话的有效方法和策略，对提高网络教育质量具有重要意义。

Any instructional activity will involve a process of dialogue in which learners should be led to conduct constructive， collaborative and reflective learning. Web-based environments do not change the nature of the need for dialogue simply because teachers and students are separated from each other. Web-based instruction actually requires dialogue across time and space. As a matter of fact， high-quality， in-depth dialogue is fundamental to the enhancement of the quality of instruction. Therefore， research on the characteristics and strategies for web-based dialogue has great significance to the improvement of the quality of instruction.