一、课堂提问,吸引注意力,导入课题。问题是数学发展的重要动力,发现问题、分析问题、解决问题进而指导人类的各个领域是数学的根本特性。教学过程实质上就是教师有意识地使学生生疑、质疑、解疑、再生疑、再质疑、再解疑……的过程。在此循环往复、步步推进的过程中,学生掌握了知识,获得了能力。学生刚进入课堂时,由于各种原因,注意力比较分散,不易很快进入学习状态。此时教师有技巧性的课堂提问 First, the classroom questions, to attract attention, into the subject. The problem is an important motive force for the development of mathematics. It is the fundamental characteristic of mathematics that discovering problems, analyzing problems, solving problems and then guiding all fields of human beings. The teaching process is essentially the process by which teachers consciously make students suspicious, questionable, disproved, reborn suspicious, re-questioned, and then resolved. In this cycle of reciprocating, step by step in the process, the students mastered the knowledge gained the ability. Students just entered the classroom, due to various reasons, attention is more scattered, not easy to quickly enter the learning state. Teachers have skillful class questions at this time