The aim of this study is to propose educational policies because it is ethically impossible for school education to implement empirical and experimental studies. For this purpose, we employ agent-based simulation to model academic skills of students. In the simulation model, we utilize three kinds of learning models, informational approach model, learning by teaching model and motivation for learning model, from learning theory in the literature, and then investigate how many teachers should be allocated to each school in order to improve academic abilities of students. Our main finding is twofold: First, any staffing decreases the abilities of the top 10%. Second, in contrast, the increase of those of the bottom 10% may depend on the staffing and it is in proportion to the number of teachers in elementary schools.

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This study described Japanese language learning assistant system that facilitates learning by supporting students to construct the relation diagram between sentence patterns and vocabulary extracted from Japanese-language grammar. From preliminary survey, we have learned that non-native Japanese language learners, say, Chinese students, are inclined to give priority to the meaning of language, which will obstruct understanding and cause the misuse of language. Consequently, this study proved the effect of Japanese language learning assistant system in supporting Japanese-language learning and strengthening understanding. This study first extracted 555 sentence patterns and 440 word items, and compiled the database on the basis of part of speech. Then the Japanese language learning assistant system was constructed with reference to extracted database. The result shows that learners are more engaged in constructing the relation diagram and the description of sentence patterns and vocabulary by actively communicating with teachers. In comparison with traditional class on lectures and textbooks, there is a significant increase in the average scores of students learning with the assistance of this system.

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