The document discusses the roles and functions of educational technology in 21st century education. It states that instruction should be student-centered by focusing on active and collaborative learning. Education should also be collaborative, with students working together on projects. Finally, learning needs to have context and be relevant to students' lives. The document also outlines key functions of educational technology, including improving teaching and learning, developing curriculum and materials, and identifying community needs. Overall, the document advocates for using technology comprehensively to support innovative teaching, learning, and education systems.