Abstract
The purpose of this study is to investigate that we can consider factors that prompts change of children's method to use literal expressions. We presented how to think of children's method to use literal expressions and reviewed researches on it. Moreover I studied factors that prompt the change of children's method to use it in the case of observational deaf student's activity. Consequently, it is implicated that the change of children's method to use literal expressions is decided on the change of children's aims of using them and conceptions toward them according to their interpretation of other children's aims and conceptions.
