Teachers at the primary level should resume the neglected practice of diagnostic teaching. This means that the teacher should observe all aspects of a student's cognitive behavior in the teaching/learning act and then plan instructional strategies for subsequent lessons. Some significant cognitive behaviors observable in diagnostic teaching are…

This paper reviews the evolution and implementation of the "Sesame Street" curriculum relating to the development of language and prereading skills. The first section gives a brief history of the Children's Television Workshop, describes the operational model followed by the Workshop in carrying out its initial experiment, and suggests…