随着新课改的不断深入,小学数学课堂也发生了较大的改变。传统的教师主讲、学生被动听的模式转变为了教师引导下的学生自主探究活动。但就目前课堂教学实践来看,由于对自主探索式的学习理念还处于实践阶段,故在课堂有效性方面还值得进一步探索。结合教学实践,就问题情境的创设、探究活动的组织、合作方式的建立、课堂评价的运用四个方面的有效性作初步探究。 With the continuous deepening of the new curriculum reform, great changes have taken place in the elementary mathematics classroom. The traditional teacher talked that students’ passive listening mode has been transformed into student-led inquiry activities guided by teachers. However, in the current practice of classroom teaching, due to the fact that the concept of self-exploration is still in practice, it is worth further exploration in the validity of the classroom. Combining with the teaching practice, this paper explores the effectiveness of the four aspects of the establishment of the question situation, the organization of inquiry activities, the establishment of cooperation methods and the application of classroom evaluation.