一堂课要有一个好的开头,首先必须高度重视知识引入的设计。花大力气研究引入的技巧,考虑引入的过程,力求使引入“自然、合理,符合数学知识结构和学生的心理特征。一开始就注意创设问题情景,使学生感到要学习的东西满足:有一定的认识价值;是可以被认识的;必须通过一定的努力才能解决。这时,才能尽可能调动学生的求知欲与思维积极性,使教师的教学活动与学生的心理活动,处于协调和谐的状态。这好象一部剧作的序幕,一开始就引人入胜。就目前教改的情况看,归纳如下几种引入途径: 一联系旧知识引入新知识心理学研究指出:“学生们在学习时,(则)习惯于用已有的知识,去理解新知识,总希望将新知识纳入 To have a good beginning in a class, we must first attach great importance to the design of knowledge. Take great efforts to study the introduction of skills, consider the introduction of the process, and strive to make the introduction of "natural, reasonable, consistent with the structure of mathematical knowledge and the psychological characteristics of students. From the beginning to create problem scenarios, so that students feel something to learn to meet: there is a certain The understanding value can be recognized, and must be resolved with certain efforts.At this time, the students’ desire for knowledge and enthusiasm for thinking can be mobilized as much as possible so that the teaching activities of the teachers and the students’ psychological activities are in a harmonious and harmonious state. This is like a prologue to a drama that starts with a fascinating story. As far as the current situation of education reform is concerned, the following introduction methods can be summarized as follows: 1. Introducing new knowledge in connection with old knowledge Psychology research points out: “Students are learning, ) Accustomed to using existing knowledge to understand new knowledge, always want to include new knowledge