This document provides an overview of developing instructional materials. It discusses that the designer may also take on the roles of materials developer and instructor. When the designer is not the instructor, different individuals may be assigned different functions on an instructional design team. The delivery method and media selection may be influenced by the availability of existing materials, production constraints, and the level of instructor facilitation. Key components of an instructional package include the instructional materials, assessments, and course management materials. Formative evaluation through methods like rapid prototyping and rough drafts can help improve the instructional materials. Learner participation is also important.