Development of Instructional Materials Model Based on Inquiry-Transactional Approach Khoirawati fairuzanidf@yahoo.com; +62 813 21961314 Sekolah Menengah Kejuruan (SMK) Negeri 1 Pagar Alam Jalan Raya Pagar Alam – Lahat KM 22 Pagar Alam, Sumatera Selatan 31551, Indonesia Descriptors for use in the index: inquiry transactional, development, design instructional. Abstract The purpose of this study was to develop instructional materials model. The process is develop a conceptual model of instructional materials, procedural modeling in the design instructional through systematic measures, effective, and efficient, and produce physical models for the new of instructional materials. This study uses research and development that combines two methods. The first method, taken from the initial step of research and development by Borg & Gall (1979) and the second method taken from the Systematic Design of Instructional Dick, Carey, & Carey (2009). The Systematic Design was adopted by Borg, Gall,& Gall (2007) as research and development method. The instructional materials developed based on inquiry-transactional approach. The final result will be the physical model of instructional materials based on inquiry-transactional approach. Those are printed and interactive CD instructional materials plus student’s and teacher’s guides. Introduction One of the subsystems in the class lesson is the availability of instructional materials and teaching methods. Instructional materials can be in form of books or printed materials, instructional CDs, online material, television broadcast material, radio broadcast material, or combination of these various forms. When seen from how the presentation of the content, instructional materials can use specific method or approach. The definition of instructional method is the way of teachers in delivering instructional materials so that the instructional objectives achieved well. Until now the availability of instructional materials such as text books for Vocational High School students especially for Educational of Islam Relegion (PAI) subjects is still limited. This limitation is not just about numbers but also especially regarding the book quality which have not met the standard. Based on the early research outcomes, methods of teachers in delivering instructional materials especially the material of Islam development history in the World which is still in less motivating ways for the students to be more active, creative, innovative, and have a joyful instructional. To create such an atmosphere used inkuiri-transactional approach. Instructional approach with inquiry-transactional is an instructional process that combines method of inquiry and market strategy. Method of inquiry has the key feature that emphasizes learning activities in the process of thinking critically and analytically students to seek and find their own answers to the question of a problem. Transactional method has the key feature of the adopted transaction information transaction between buyers and sellers of goods on the market. In the market there are strategic of transaction of information activities. Transaction information is intended as trading conditions in the atmosphere such as market information. Information is the subject of the transaction is a matter of Islamic education in the field of History of Islam in the World. 456