九年义务教育六年制小学数学第九册“梯形面积的计算”是在学生已经学会计算平行四边 形、三角形面积的基础上进行教学的。因为本节课新旧知识联系非常紧密，根据“自主学习 ”课堂教学的基本结构，这节课我是这样安排的：一、激情引趣，设问引思上课一开始，我就拿出用小药瓶 Nine-Year Compulsory Education The six-year elementary school mathematics ninth volume “Calculation of trapezoidal area” is based on the students have learned to calculate the parallelogram, triangle area based on teaching. Because of this class new and old knowledge is very close, according to the basic structure of “self-learning” classroom teaching, this lesson I arranged this: First, the passion of intriguing, asked cited think the beginning of the class, I took out a small Medicine bottle