从直角三角形的垂心谈起

在数学教学中,向学生提供充分从事数学活动的机会,帮助学生通过动手实践、自主探索与合作交流等方式,真正理解和掌握基本的数学知识与技能,是新课程所倡导的重要理念。1]本文通过对学生在直角三角形垂心位置问题上出现错误认识的分析,指出了在中学数学教学中贯彻新课程标准理念,改变传统的数学学习方式的对策。

Teaching math:a case from the right triangle orthocenter

In teaching mathematics,an important idea of new curriculum is to give students chances to engage in mathematic activities,help them practice,explore actively,and cooperate so as to understand basic mathematic knowledge and grasp the basic skills.\1\]This paper puts forward a measure to practice the idea of new curriculum standard and change the traditional way of mathematics learning through a wrong understanding of the problem of position of right triangle orthocenter.