“老师,我认为这种方法不好……”小杜同学略带激动的声音着实让我一惊。在我们惊讶之余,学生们的思维却因他的发言而一下子活跃起来。面对一张张因为兴奋而发红的小脸,我们被这样开放的课堂深深地震动了:这不正是我们期待的活跃吗?如果没有老师适时的等待,没有小杜同学与众不同的解法,失去的不仅仅是两种解题思路,同时失去的还有学生学习的热情……细细想来,学生活动空间的设计在哪里,就在我们 “Teacher, I think this method is not good ... ” Little Du students slightly excited voice really surprised me. While we were surprised, the students’ minds suddenly became active because of his speech. Faced with a little red face excited by excitement, we are deeply shocked by this open class: This is not exactly what we expect to be active? Without the timely waiting of teachers, there is no difference between Xiaoduan students Solution, lost not only two kinds of problem-solving ideas, but also lost the enthusiasm of students to learn ...... Think carefully, the design of student activities space where, right in our