在中等卫校《生物学》的教学过程中,安排好教与学的双边活动,可以大大激发学生的学习兴趣,消除学生在学习中的枯燥感,从而使他们较轻松地完成从不知到知之,从知之甚少到知之甚多的转化.笔者在多年的教学实践中,有如下的体会. In the course of biology at the secondary health school, arranging bilateral activities of teaching and learning can greatly arouse students’ interest in learning and eliminate the boring feelings of students in learning, so that they can more easily complete the process from being ignorant to knowing. From the little known to the well-known transformation, the author has the following experience in his teaching practice for many years.