This document discusses the roles and functions of educational technology in 21st century education. It outlines that education needs to prepare students to be active, successful members of society. Instruction should be student-centered, collaborative, and provide context for learning. Technology allows for 24/7 access to information, constant social interaction, and easily created and shared digital content. Important functions of educational technology include improving teaching and learning, analyzing the teaching-learning process, enhancing educational goals, training teachers, developing curriculum and teaching materials, identifying teaching strategies and community needs.