摘要：The overall aim of this study is to develop an authentic-based instructional material for writing skill. Therefore, the research applied Research and Development design and used ADDIE model which consists of five stages namely Analysis, Design, Development, Implementation, and Evaluation. A Questionnaire was given to the third-semester students in Education Department of UIN Alauddin Makassar as the instrument to find out the students’ need analysis. After designing the product, the material was validated by two experts and then implemented to the students. The implementation process of the authentic-based instructional materials was done twice in a small number of students consisted 10 students as the first try out and in a large number of students consisted of 30 students as the second try out. Then, evaluation of the materials was given by the experts, the lecturers, and the students. Data were analyzed using percentages and charts. In addition, the analysis of the data shows that most students, lecturers, and the experts gave positive responses towards the developed materials. The material was revised three times by considering the comments and suggestions by the experts, lecturers, and the students. The model of the developed materials consisted of some aspects namely goal, topic, activities, approach, media, genres, content, and testing strategy. Moreover, the learning process consisted of four parts namely discussion, pre-writing, writing, and post-writing.
关键词：writing; authentic material; instructional material; research and development; ADDIE model
