“教”——“练”的模式在新课改推进近20年的今天,仍然在默默上演,教师讲方法、演示操作过程,学生看、听、模仿老师做,被动接受、机械模仿,学得索然无味,练得缺乏创新,课堂教学每况愈下。文章从课前“研学”和课堂“研学”以及“后教”等层面,论述小学信息技术教学中“研学后教”的几点体会。 In the recent 20 years of the new curriculum reform, the mode of “teaching ” - “practice ” is still silently staged. Teachers talk about ways and means of demonstrating the operation process, students watch, listen, imitate the teacher, passively accept, Mechanical imitation, learned dull, lack of innovation practice, classroom teaching deteriorating. The essay elaborates some experiences of “post-graduate teaching” in the teaching of information technology in elementary schools from such aspects as the level of “research” and “research” and “post teaching” before class.