Synopsis Educationists and Teacher Educators have developed models of teaching and learning for elementary class and for secondary classes as well as for the colleges. It is not possible for an ordinary teachers come to the classes for teaching are helped with hand-books giving the teaching learning models. The Editor is grateful to various American Organisations who have developed teaching learning models and which have been used as examples of teaching, learning models and which have been used in India as well as in many developing countries of the world.