论文部分内容阅读
一、第一次追问:角的度量知识的生长点在哪里带着这个问题,我首先对教材进行了纵向梳理。《角的度量》是课程标准人教版小学数学四年级上册第三单元第40~41页的内容。学生对于“角”知识的学习分为两个阶段:第一学段学生已经学习过的线段、角等知识仅仅是初步的,属于角的感性认识阶段,是一种经验的积累,是直观的认识。第二学段角的认识就属于理性认识阶段,是一种量化的认识,是抽象的认识。所以说角的认识是一种由感
First, the first question: angle measurement of the growth point of knowledge with this problem, I first of all the textbook for a longitudinal comb. The “measure of the angle” is the content of the 40th ~ 41 pages of the third unit of the fourth grade of the PEP in PEP. The students’ learning of knowledge is divided into two stages: the first section students have already learned the line, angle and other knowledge is only preliminary, belongs to the corner of perceptual awareness stage, is an accumulation of experience is Intuitive understanding. The second section of the understanding of angle belongs to the rational stage of understanding is a quantitative understanding of the abstract understanding. So that the angle of understanding is a feeling