The term universal design for learning(UDL) means a scientifically valid framework for guiding
educational practice. UDL provides flexibility in the ways information is presented, in the ways
students respond or demonstrate knowledge and skills, and in the ways students are engaged. It also
reduces barriers in instruction, provides appropriate accommodations, supports, and challenges, and
maintains high achievement expectations for all students including students with disabilities.
This study was set to develop the principle of design for digital text in five majorsubjects with
UDL in secondary school for supporting instructional inclusion. For this purpose, total 706 teachers
of 148 secondary schools who teach Korean, English, Mathematics, Social Studies, and Science and
have teaching experience with students with disabilities participated in this study. The questionnaire
was developed based on UDL guideline version 1.0 of CAST.
706 teachers responded to the survey and the major findings of the study as follows: First, there
are several UDL guidelines which are essential for developing digital text in all five subjects. Second,
there are several UDL specific strategies of design which take preference over other strategies in
developing digital text in each subject. Based on the findings, the principle of design for digital text
with application of UDL guidelines in the major subjects was developed. This study concluded with
recommendation for future studies on this topic.