The purpose of this study is to discuss pedagogical methods to develop students' perspectives and ideas through a causal relationship in practice of a class where students make their own moving toys. In this research, the researcher conducted classes and collected self-report sheets and questionnaires at the end of every class. The result suggests that students employed four pedagogical methods and compared some causes concerning a causal relationship in an activity where students make their own toys. The four pedagogical methods are as follows: 1) To consider what kind of linguistic expression to use focusing on a causal relationship. 2) To associate this unit with the units about making toys which also acquire students to look at a causal relationship. 3) To express words by focusing on a causal relationship and utilizing narrative structures. 4) To encourage students to help each other.