众所周知,职业高中的生源大多是中考的落榜生。他们属于学习层次较低的学生,文化基础较弱,知识结构不完整,并且学习能力较差,而这些缺点又主要体现在数学课程上。作为一门重要的文化基础课程,数学教材一改再改,难度不断降低,教学方法和手段也推陈出新。然而,长期从事数学教学的教师,不是越教越轻松,而是越来越“不会教”了。 As we all know, most of the students in vocational high schools take the exams. They belong to the lower level of learning students, the cultural foundation is weak, the knowledge structure is not complete, and the learning ability is poor, and these shortcomings are mainly reflected in the mathematics curriculum. As an important basic course of culture, the mathematics textbooks have been changed and changed, the difficulty has been continuously reduced, and the teaching methods and methods have also been introduced. However, teachers who have been engaged in mathematics teaching for a long time do not teach more and more easily, but more and more “can not teach.”