This paper describes the development of an adaptive self-learning environment in which both mobile phones and personal computers can be used as client terminals. The SCORM 2004 specification was used to implement a standard-based learner adaptive function. The specification was extended to enable offline learning using mobile phones and sharing of course structure and learner tracking information for learning activities using both mobile phones and personal computers. Because the application-programming environment of mobile phones varies from carrier to carrier, a common content format was specified for the learning content rendered by the browsers developed for each carrier?s environment. The system can provide adaptive courses such that results of a pre-test taken on a mobile phone modify the lecture content on a personal computer, fitting it to each learner?s level of knowledge and understanding.