争鸣，为了数学教育的繁荣陕西师范大学罗增儒读陆文郁老师的《点评》，我仿佛又回到了学生时代，回到了中山大学窗明几净的课堂．陆老师是我读大学时的老师，而赵晓玲、唐平山是我们师范大学的毕业生，我对学生的课例作了点评，老师又对我们的“课例点评”再作点评，实在... Contesting for the sake of the prosperity of mathematics education Shaanxi Normal University Luo Zengru read Lu Wenyu’s “Remarks”. I seem to have returned to the student era and returned to the windowless class of Sun Yat-sen University. Teacher Lu is my teacher when I was in college, and Zhao Xiaoling and Tang Pingshan are graduates from our normal university. I commented on the student’s class examples, and the teacher commented on our “class comment” again. .