课堂评价是对学生的学习表现予以肯定、鼓励或指正的一种手段,通常贯穿课堂教学的始终。有效的课堂评价,不仅能促使学生以一种积极、高昂的情绪参与学习活动,促进学生主动、敏捷地思维,还可以让学生得到数学思想方法的启迪。因此,教学时我们应关注学生在课堂上的学习过程、生成状态,让学生的身 Classroom assessment is a means of affirming, encouraging or correcting students’ learning performance, often throughout classroom teaching. Effective classroom evaluation can not only encourage students to participate in learning activities with a positive and high emotion, promote students to think actively and promptly, but also enable students to get inspired by mathematical thinking and methods. Therefore, when teaching, we should pay attention to the students in the classroom learning process, generate status, so that students