一、课题的选择2006年3月初,我们教研组按照常规,开展了一次“同上一节课”的教研活动。教材是二年级下册的《认数》。老师们在一起研读教材,分析重点、难点后,各自进行课堂学习活动设计。在研讨中,老师们就“导入活动的设计”产生了分歧:有的老师认为百以内数的认识是学生学习这节课的起 First, the choice of topics In early March 2006, our teaching and research group in accordance with the conventional, launched a “Ibid a lesson ” teaching and research activities. Textbook is the second grade book “recognized.” Teachers together to study textbooks, analysis of key and difficult, their own classroom learning activities design. During the seminars, teachers disagree on the “design of the introduction activity”: Some teachers think that the knowledge of a hundred or less is the starting point for students to learn this lesson