一九九0年下学期起,我们在湖南省娄底市第四小学《现代小学数学》班开展“三段式”电教模式实验,历时两年了。现就这一实验的实践和思索分述如下。历年来,我们朝着小学数学教学的目标,努力地工作,但实践状况不佳,学得好的只占10～20%,学得一般的约占60～70%,而学得差的包括特别差的占20%左右。一般和比较差的学生的思维品质也没有得到很好培养,其敏捷性、灵活性、深刻性和独创 Starting from the next semester in 1990, we conducted “three-stage” teaching mode experiments in the “Modern Primary Mathematics” class of the fourth primary school in Loudi City, Hunan Province for two years. The practice and thinking of this experiment are as follows. Over the years, we have worked hard to achieve the goal of primary school mathematics teaching. However, our practice situation is poor. Only 10-20% of our students have learned well and about 60-70% of them have learned normally. Particularly poor accounted for about 20%. The general and poor quality of thinking of students has not been well trained, its agility, flexibility, profoundness and originality