Development of Presentation education method based on the theory of Multvoicedness

从演讲的多声音视角出发，演讲的过程被看作是演讲者和听众（真实的和想象的）之间对话的过程。基于多语音演讲观，提出了“多语音互评法”和“多语音脚本构建法”作为提高演讲能力的策略。多音互评是指学习者不是从自己的观点，而是从教师给出的各种观点来相互评价自己的演讲/想法的活动。多声剧本结构的设计是为了在表演的发展过程中方便对他人声音的挪用。以计算机为基础的系统，帮助学习者进行多声部相互复习和构建多声部剧本。实验研究表明，所提出的方法提高了学习者的表现；开发原型作品，帮助学习者的活动。

A multivoiced view of presentations is developed From the multivoiced perspective of the presentation, the process of presentation is viewed as the process of dialogue between the speaker and the audience (both real and imaginary). Based on the multivoiced view of presentations, a "multivoiced mutual reviewing method" and "multivoced script construction method "are proposed as a strategy to improve ability in presenting. Multivoiced mutual reviewing is an activity in which learners mutually review their presentations/ideas not from their own viewpoint but from various viewpoints given by the instructor. Multivoiced script construction is devised in order to facilitate appropriation of others' voices in the course of development of presentation. Computer based system which helps learners to do multivoiced mutual reviewing and to construct multivoiced scripts. Experimental studies show that the proposed methods improve learners presentation ; developed prototype works to help learners' activities.