Learn the content    
        The person developing a CBI lesson will either be a subject-matter expert who
Must learn about CBI designer who must learn the content. Even when working   in conjunction with a content expert, the designer must learn the con-tent.  To a lesser extent, the content expert will also learn about instruction.  For the designer, learning the content includes interviewing the expert, reading texts and other instructional materials, and generally becoming a student again.  You cannot develop effective instruction which challenges the student in creative ways unless you become thoroughly familiar with the content.  Shallow understanding can only produce a shallow lesson.