北京小学位于北京市中心,是一所历史悠久的学校。2004年《科学》课正式进入到我们四位教师的教学工作中。在上个学期,我们参照教科版三年级下册教材,较深入地进行了《动物的生命周期》这个单元的教学实践研究。我们的历程———准备我们首先确立了这个单元内容是一个长周期的科 Beijing Primary School is located in the center of Beijing, is a historic school. 2004 “Science” class formally entered the teaching work of our four teachers. In the last semester, we refer to the textbook of the third grade of the textbook, conducted a more in-depth study of the teaching practice of the unit “animal life cycle.” Our journey --- ready We first established the unit content is a long cycle of subjects