五种障碍 meaning in Chinese

the five obstructions

By analyzing resolving process of several groups of typical fraction applied problem , this research put the test paper as the start point . the paper point out that there are five obstacles student will encounter in the " process of fraction applied problem . those are : ( 1 ) obstacle of cognitive level of student ; ( 2 ) obstacle of black mathematical cognitive structure ; ( 3 ) obstacle of the problem representation ; ( 4 ) obstacle of structural character ; ( 5 ) obstacle of problem resolving strategy
进而根据测试卷的解答情况，从测试问卷入手，通过对几组典型的分数应用题解答过程及结果的一般性分析，依托问题解决理论，对小学分数应用题的解答障碍进行了初步研究，得出结论：学生解答分数应用题会遇到五种障碍，分别是： ( 1 )小学生的认知水平障碍； ( 2 )小学生的不良数学认知结构障碍； ( 3 )分数应用题问题表征障碍； ( 4 )分数应用题的结构特征障碍； ( 5 )分数应用题问题解决策略障碍。