Context-aware ubiquitous learning combines context-awareness with wireless and mobile technologies to observe the situation of students in the real world and provides personalized guidance accordingly. Student Model creates student's history logs automatically and maintains history of subject content requested. It also offers information on student's hardware capabilities, students preferences, knowledge level and student status. This information can be utilized to respond to new student's request from previous similar request. A Ubiquitous student model aims to identify student’s needs, characteristics and situations. In this paper, we have proposed a method of designing student model, that provides personalized subject content adaptation