This document discusses the meaning, scope, and objectives of educational technology. It defines educational technology as the application of scientific knowledge and learning principles to improve teaching effectiveness and efficiency. The document outlines several definitions of educational technology provided by different scholars. It also discusses the wider scope of educational technology beyond just technological tools, emphasizing the interaction between changing concepts and techniques. Finally, the document lists objectives of educational technology at both the teacher and student level, as well as at a macro level in working towards broad educational goals.