随着“普高热”的出现,各技校受着高中扩招的冲击,给招生带来诸多的不便,导致技校生源整体文化基础水平明显下降。这些学生中有不少人数学的中考成绩只有二三十分,更有甚者连初中也没读完,也有部分学生虽然自身成绩不错,由于家庭经济不允许,为了减轻家庭负担,被迫放弃普高,选择学门技术来读技校。这些造成了中职学生文化基础参差不齐,面对这种差异,采用“齐步走”的教学方法是行不通的。因此,分层次教学对技校的数学教学就显得尤为必要。 With the advent of “Pogo hot”, all technical schools are impacted by the enrollment expansion in high schools, which brings many inconveniences to enrollment, resulting in a marked drop in the overall cultural level of technical school students. Many of these students math test scores only twenty or thirty points, and even worse did not finish even junior high school, and some students although their own performance is good, because the family economy does not allow, in order to reduce the family burden, forced to give up Pu Gao, choose to learn technology to read technical school. These have created a mixed culture of secondary vocational students, in the face of this difference, the use of “step by step ” teaching methods will not work. Therefore, the multi-level teaching of technical school mathematics teaching is particularly necessary.