This paper describes teachers' recognition about children's trouble and children recognition about trouble in the class of information education. We found that teachers tend to recognize that children's trouble is about the computer system and function or process of using the software, on the other hand, children tend to recognize that it is the situation that they are stopped by something during their work. We also found children become aware of the trouble only of the present. Teachers should pay attention to a child's stages of development, and suggest the way to find the meta-recognition which children fall short of in the future.