TO SHARPEN THE HEARING IMPAIRED STUDENTS' ABILITY OF SELECTOVE PERCEPTION IN THE MATHEMATICAL COMMUNICATION

自1996年以来，我们对听障学生的视觉感知进行了研究，以鼓励利用他们的身体能力来克服他们的残疾。我们认识到选择性感知视觉信息的重要性，以克服他们对操作意义的执着处理，并从其他交际参与者发送给他们的视觉信息中发现结构意义的含义。在过去的两年里，从2001年到2002年，我们一直关注选择性感知在听障学生数学概念交流中的作用。在本研究的结果中，我们了解到选择性知觉依赖于经验和知识，它影响着对信息的解读和后者的反思性思维的激活。选择性知觉产生的间隙将认知过程推进到更高的阶段，即扩展和分化。在日本几所聋校的合作下，我们尝试开发了一种提高听障学生选择性感知能力的教学方法。

We have studied hearing impaired students' visual perception to encourage to use their physical ability to overcome their handicap since 1996. We get to know the importance to perceive visual message selectively to overcome their persistence to handle the operational meaning and to find the implication of the structural meaning from the visual message that other communication participants sent to them.For the last two years, from 2001 to 2002, we have been focusing the "selective perception" in the hearing impaired students' communicating mathematical concepts. In the results of this study, we get to know that the selective perception depends on the experience and knowledge, and it affects the interpretation of the message and the activation of the latter reflective thinking. The gap that generates from selective perception advances the cognitive process toward the upper phases which are expansion and differentiation. We have tried to develop the instructional method to sharpen hearing impaired students' ability of selective perception with getting the cooperation of several schools for the deaf in Japan.