This document discusses the role of educational technology in 21st century learning. It defines educational technology as the effective use of technological tools in learning, including media, machines, networking hardware, and theoretical perspectives. It lists three key roles of technology in learning today: allowing 24/7 access to information, enabling constant social interaction, and facilitating the easy creation and sharing of digital content. The document also outlines 11 important functions of educational technology, such as improving teaching and learning, enhancing educational goals, developing curriculum and teaching materials, and identifying community needs.