Ding observes that in the past, maths textbooks were too difficult, and two-thirds of children were doing no more than "sitting in" on classes. Now that the textbooks have been simplified, people complain about "the hares having to wait for the tortoises."
丁志仁指出，過去數學教材太難，有三分之二的小朋友根本是在「陪讀」，而今教材簡化，又有人批評是「兔子等烏龜」。