新课标教材为教师构建了一种全新的理念,也让数学课堂成为学生张扬个性,充分展示才华的舞台。同时教师也面临着前所未有的挑战:学生不再一味跟着老师设定的思路走,坚持自己的主张,各种始料未及的情况不期而至。如何有效应对这些超出教师预料的“意外”?是将原有的教学设计进行到底,还是充分利用这些“意外”?这是摆在每位老师面前的一道简单而复杂的选择题。实践证明,跳出备课预设的禁锢,尊重学生的发言,及时捕捉现 The new curriculum materials for teachers to build a new concept, but also to make the math classroom become individuality, fully demonstrate the talent of the stage. At the same time, teachers also face an unprecedented challenge: Students no longer blindly follow the ideas set by the teacher to go, adhere to their own ideas, all kinds of unexpected situation unexpectedly. How to effectively deal with these “unexpected” beyond the teacher’s expectations? Is the original teaching design to the end, or make full use of these “accidental”? This is placed in front of each teacher a simple and complex multiple-choice questions . Practice has proved that jumped out of the confines of the pre-set preparation, respect for students’ speeches, timely capture now