The document discusses the roles and functions of educational technology in 21st century education. It explains that 21st century education aims to prepare all students to succeed in a competitive world. Educational technology is defined as the integrated use of people, devices, ideas, and organizations to analyze and solve problems related to human learning. Technology plays an important role in 21st century learning by providing 24/7 access to information, enabling constant social interaction, and allowing for easily created and shared digital content. Some key functions of educational technology include developing curriculum, analyzing the teaching-learning process, creating teaching materials, identifying community needs, and improving teaching and learning.