论文部分内容阅读
八年级数学下册“相似三角形”这一章里面有一个开放性的活动题:亲爱的同学们,学习完这相似三角形的内容,你能否设计一个可行的方案,和你的同伴合作,测量学校里面的旗杆高度呢?本文是针对这节活动课的内容而设计的教学案例.一、活动准备教师准备:必要的测量工具,设计活动方法.学生准备:标杆、镜子、皮尺等测量工具.课前将学生分成4组,各小组设立组长一名,长度测量员二名,观测员一名,记录员一名,器材准备员一名,数学建模
The eighth grade mathematics book “Similar triangles ” This chapter there is an open activity title: Dear students, after learning the content of this similar triangle, you can design a viable solution to work with your peers , Measuring the height of the flagpole inside the school? This is a teaching case designed for the content of this activity class .A preparatory activities for teachers: the necessary measurement tools, design activities .Study preparation: benchmark, mirror, tape measure Tools. Students will be divided into four groups before class, each group has set up a team leader, two length surveyors, one observer, one recorder, one preparer for equipment, mathematical modeling