一、起因师生是课堂互动的两个主体,他们的互动能够带来课堂教学的多样性。在课堂中,师生互动最主要的表现就是师生间的对话。笔者通过对四年级“找规律”其中一个练习教学过程的观察,试图仔细研究一下教师是如何运用对话形式来实现同学生的交流与互动的?教师是如何在练习中进行有效价值引领,为规律的展开和探究引航的? First, the causes Teachers and students are the two subjects of classroom interaction, their interaction can bring the diversity of classroom teaching. In class, the most important manifestation of teacher-student interaction is the dialogue between teachers and students. Through the observation of one of the practice teaching processes of the fourth grade “find the law ”, the author attempts to study carefully how teachers use dialogues to realize the exchange and interaction with their students. How can teachers lead the effective value in practice, For the regular expansion and exploration pilot?