This document discusses models of teaching, defining them as instructional designs that specify environmental situations to cause changes in student behavior. It provides definitions from various scholars and outlines the characteristics, elements, assumptions, and types of teaching models. Teaching models are described as prescriptive strategies based on certain philosophies that provide guidelines to achieve objectives through scientific procedures and the specification of learning outcomes, performance criteria, and elements like syntax and social systems. The document categorizes teaching models into four families based on their information processing, personal, social interaction, and behavior modification sources. It provides examples of models within each family.