Attempts at school reform and improvement have experienced difficulty creating and implementing feedback systems that energize and sustain change efforts. If the call for reform at all levels of education is to be met, attention must be given to establishing effective feedback mechanisms in educational institutions as they embark on improvement efforts. The purpose of this article is to describe application of an educational design metaphor to create a Knowledge Management System that provides teachers with timely and constructive feedback about their professional practice. This system includes the way in which a corpus of professional knowledge about differentiated content and instruction, classroom grouping, evidence-based practice and classroom management can be embedded in a set of tools that provides multiple stakeholders (teachers, students, administrators) the opportunity to generate feedback about instructional practice. Use of the approach is discussed within the broader context of Knowledge Management as a vehicle to extend the role of feedback in school reform and improvement within a long term pilot application in one school.