This book provides guidance to beginning and experienced educational material developers. The targeted objectives are guiding developers on external funding, explaining the complex process of developing instructional materials, and pointing out the human interactions and issues involved in the development process. Chapters include: (1) "The Teacher's Stradivarius"; (2) "How Guided Inquiry Fulfills Society's New Definition of Education"; (3) "Designing Materials for Guided Inquiry: Three Principles"; (4) "Finding and Managing Funds"; (5) "Putting Together the Project Team"; (6) "Working with Commercial Partners"; (7) "Working Together: Collaborations for Success"; (8) "Assessment and Evaluation"; (9) "Drafting and Testing Initial Versions"; (10) "Preparing for Publication: National Field Tests and Final Revisions"; (11) "Implementation, Dissemination, and the Role of the Teacher"; (12) "Closure and Continuity"; (13) "Professionalizing Materials Development"; and (14) "Designing Your Project and Preparing Your Proposal: A Checklist." (Contains 53 references.) (YDS)