The document discusses the roles and functions of educational technology in the 21st century. It states that technology is transforming the world and how we educate students must change to prepare them. Classrooms no longer have only four walls but use interactive tools like whiteboards and tablets to facilitate discussion. Technology gives teachers opportunities to design meaningful learning experiences and engage digital native students. The roles of technology in education include providing 24/7 access to information and enabling easy creation and sharing of digital content. Educational technology can support innovative teaching, develop 21st century skills, and create robust education systems. Its important functions are improving teaching, analyzing the learning process, and facilitating more learning in less time.