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语言,是教师传道授业解惑的工具,也是教师完成教学任务的主要手段,还是教师展现教学艺术的主要形式。数学与其他学科不同,它有自己独特的符号语言、图形语言和文字语言,作为一名数学教师,要善于在课堂上发挥数学语言的特性和魅力,去点燃学生思维的火苗,从而实现师生间的有效互动。那么,数学教师的语言魅力体现在哪?本文,笔者以不久前观摩的一节“多边形的内角和和外角和(一)”示范课为例,试着对这一问题作回答。
Language is a tool used by teachers to preach professional solutions, as well as the main means by which teachers can complete their teaching tasks or the main form in which teachers show the art of teaching. Different from other disciplines, mathematics has its own unique symbolic language, graphic language and written language. As a math teacher, mathematics should be good at exerting the characteristics and charm of mathematical language in the classroom to ignite the flame of students’ thinking so that teachers and students Between the effective interaction. So, what is the charm of mathematics teachers? In this paper, the author tries to answer the question by taking a section not long ago observed, for example, “the polygonal angle and outer angle and (a)” demonstration class.