In this study, there are four concepts based on Ogasawara's theory of educational materials to "become" from "there". The “there 1” concept is a developmental stress tool. Therefore, the structure of classes is based on a teacher-centered approach. The “there 2” concept is the traditional teaching method that teachers use existing materials. Therefore, the structure of based on a one-way approach from the teacher to the children. The “become 1” concept is teaching materials created by teachers before class. Therefore, the structure is based on a two-way approach between the children and the task under the teaching control. The “become 2” concept is educational materials created by children as learners and teachers during class process. Therefore, the structure is based on a learning perspective approach that changes and transforms.