在讲授生物课程“尿的形成”一课时,若仅靠教师的讲解,学生较难理解尿的形成过程。为了便于学生理解掌握课程知识,笔者自制了“尿的形成演示器”。该演示器经课堂使用后效果十分明显,学生很容易就掌握了尿的形成过程。下面,笔者简要介绍该演示器 When teaching biology class “urine formation ” class, if only the teacher’s explanation, students are more difficult to understand the formation of urine. In order to facilitate students to understand the knowledge of the course, I made a “urine formation demo ”. The demonstrator after the classroom effect is very obvious, students can easily grasp the formation of urine. Below, I briefly introduce the presenter