教学过程是师生积极参与、交往互动、共同发展的一个动态过程。然而,部分教师在课堂教学中,过分强调预设,过分拘泥于预设不变的程式,否定了师生互动中的即兴创造,从而限制了师生对设计的超越,使数学课堂教学变得机械、沉闷、缺乏生机活力。可见,构建一个动态生成的数学课堂的重要性。那么该如何构建一个动态生成的数学课堂呢?一、在动态生成中调整预设的主题 The teaching process is a dynamic process in which teachers and students actively participate, interact and develop together. However, in classroom teaching, some teachers overemphasize the preconditions and overly rigidly adhere to the presupposed procedures, negating the improvisation in the interaction between teachers and students, thus limiting the teachers and students’ surpassing in design and making the mathematics classroom teaching become Mechanical, boring, lack of vitality. Visible, the importance of building a dynamically generated math class. So how to build a dynamically generated math class? First, adjust the default theme in the dynamic generation