The document discusses the roles and functions of educational technology in the 21st century. It advocates for student-centered, collaborative learning that utilizes real-world contexts. Technology allows for 24/7 access to information, constant social interaction, and easily created and shared digital content. Educational technology should be used comprehensively to develop 21st century skills, support innovative teaching and learning, and create robust education support systems. Its key functions include improving teaching and learning, analyzing the teaching-learning process, enhancing educational goals, training teachers, developing curriculum and materials, and identifying community needs.