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数学的学科特点是它的抽象性、严密的逻辑性和应用的广泛性。而学生的思维和认知水平,又缺乏实践经验,对抽象的内容不容易理解和接受。这就产生数学学科特点和学生认知特点之间的矛盾,而发展性教学手段正是在课堂教学活动中,依据认知特点和学科规律,借助媒体、设备或工具,传递教学信息,达到促使师生信息交流实现发展性教学目标而采用的方式和措施。
The discipline of mathematics is characterized by its abstraction, strict logic and extensive application. The students’ thinking and cognitive level, but also the lack of practical experience, abstract content is not easy to understand and accept. This creates the contradiction between the characteristics of mathematics and the characteristics of students’ cognition. The means of developmental teaching is precisely in the classroom teaching activities, according to the cognitive characteristics and disciplinary rules, with the help of the media, equipment or tools, to pass on the teaching information to achieve Information exchange between teachers and students to achieve the goal of developing teaching methods and measures used.