This document provides an introduction to educational technology. It defines educational technology as focusing on developing teacher materials and student outputs while introducing learning theories and principles for instructional design. It discusses behavioral technology which aims to modify teaching behaviors and instructional technology as a systematic process of learning and teaching. The document also outlines six uses of information technology in education such as providing educational resources, enabling instant access to information, supporting full-time learning, facilitating group learning, enhancing teaching through audio/visual aids, and enabling long-distance learning. It further discusses how information and communication technologies can help improve education quality by motivating learning, facilitating basic skills acquisition, and enhancing teacher training.