ABSTRACT
Instructional design (ID) is a field of study concerned with improving student learning. As a field of study, it provides a theoretical foundation to principles of instructional design, a research base confirming the theoretical foundations, and a direct involvement in the application of those principles. Instructional design theory is often referred to as a prescriptive theory in that the variables and conditions of ID theories are predictable to given learning outcomes. Instructional design practice on the other hand provides the methods and techniques for developing and producing learning environments based on the ID theory.
