For example, the mainland math curriculum goes into equations with one unknown variable in the fourth grade, inequalities in the fifth, and trigonometric functions in middle school. On average, materials are introduced about one-and-a-half years sooner than they are in Taiwan. The Chinese language and literature curriculum is similarly advanced, with about 30 % of the material in classical Chinese.
以數學來說，小四就教一元一次方程式，小五就教不等式，初中就教三角函數，平均進度比台灣快一年半；而國文課中，文言文比例達 30 %，現代文學則選入不少梁實秋、魯迅、錢鍾書等 1930 年代作家的作品。