有效的数学学习活动不是单纯的依赖模仿与记忆,而是借助生生之间、师生之间的有效对话,构建起自主探索与合作交流的数学学习方式。在课堂教学中,怎样去挖掘知识,发现规律以及培养创造性思维是关键。这就需要教师积极发挥主导作用,及时关注具体学情,有效引领学生多元对话,从而在多元互动交流中不断生成课堂的精彩。一、创设情境,激发“自他”对话的欲望多元对话并不是随意产生的,而是需要有一定的条件,即创设一定的教学情境,让对 Effective mathematical learning activities are not based solely on imitation and memory, but on the basis of effective dialogue between students and students and between teachers and students, and building a mathematical learning method of independent exploration and cooperation and exchange. In classroom teaching, how to tap knowledge, discover laws and cultivate creative thinking is the key. This requires teachers to actively play a leading role, timely attention to specific learning conditions, effectively lead students to multiple dialogues, so as to continuously generate the wonderful classroom in a variety of interactive exchanges. First, the creation of situations, to stimulate “desire for dialogue with him ” Dialogue is not random, but need to have certain conditions, that is, to create a certain teaching situation, so that