Expansion of the i-mode drill "The world of Kanji" with review functions for m-learning

This study suggested some ways to improve "The world of Kanji, " a Web site for mobile phone users, which provides many features to support users to learn Kanji (One of three ways of Japanese writing which originated in Chinese). To strengthen review functions of the present version, the expanded version of "The world of Kanji" was designed and developed by adding/changing the following functions: (1) mail delivery of the drill, (2) correctness of response in feedback, (3) more user control over areas and number of items for review. User reactions in formative evaluation studies were favorable for the expanded version.