论文部分内容阅读
一、教学目标【知识与技能】丰富对两条直线互相垂直的感性认识,并会用符号表示两条直线互相垂直,掌握垂线的画法,理解垂线的性质,体会点到直线的距离的意义.【过程与方法】经历探索、发现垂线的性质的过程,提高观察水平和空间想象能力,发展几何语言表述能力.【情感与态度】在“做”数学中增强学习数学的热情和兴趣,在自主探索、合作交流中获得成功的体验。二、教学重、难点【教学重点】会用工具按要求画垂线,掌握垂线(段)的
First, the teaching objectives [knowledge and skills] enrich the two lines perpendicular to each other's perceptual knowledge, and will use symbols that two straight lines perpendicular to each other, grasp the vertical line of painting, to understand the nature of vertical lines, to understand the distance from point to line . 【Process and Method】 Experience the process of exploring and discovering the nature of the vertical line to improve the observational level and spatial imagination ability and develop the ability to express the geometric language. 【Emotions and Attitudes】 To enhance the learning mathematics in “doing ” math Enthusiasm and interest, in the independent exploration, cooperation and exchange to get a successful experience. Second, teaching heavy, difficult teaching focus will be required to draw a vertical tool, grasp the vertical line (paragraph)