http://www.umich.edu/~ed626/define.html Instructional Design Definitions (Penn State U) Definitions of Instructional Design http://www.umich.edu/~ed626/define.html http://www.umich.edu/~ed626/define.html Instructional Design (ID) Definitions of ID http://www.umich.edu/~ed626/define.html http://www.umich.edu/~ed626/define.html http://www.umich.edu/~ed626/define.html Definitions of Instructional Design