论文部分内容阅读
诱思教学的关键在教师恰当的“诱”,亦即在于教师对探究过程的精心设计 .本课张老师作了如下三项精心安排 :一是从圆出发 ,这是大家意想不到的精妙一笔 ;二是借类比从椭圆引导到双曲线的类似问题 ,这倒是意料之中的事 ;三是再类推到抛物线 ,这有相当难度 ,其结论一般学生是得不出来的 .在讲究现实的中国 ,要推动颇有意义的诱思教学方式的发展 ,最好常有类似的题在考卷中出现 .为此 ,特拟一例 ,供同仁们参考。
The key to inducing teaching lies in the appropriate “inducement” of teachers, which is the teacher’s meticulous design of the inquiry process. In this lesson, Teacher Zhang made the following three elaborate arrangements: First, starting from the circle, this is an unexpected and subtle one. The second is to use analogy from the ellipse to the hyperbolic similar problems, which is expected; third is analogy to the parabola, which is quite difficult, and its conclusion is generally students can not come out. Pay attention to reality In order to promote the development of meaningful teaching methods in China, it is often best to have similar questions appear in the examination papers. To this end, a special case is proposed for reference by colleagues.