This document discusses the roles and functions of technology in 21st century education. It outlines a constructivist model for professional development and educational technology that focuses on creating, self-motivating, and self-learning. It also defines technology projects as those that cannot be done without technology and do not simply replace existing tools. The document also discusses bringing your own devices to class, using tags and social media for research, organizing information distributed across different tools, and using blogging to share ideas before finalizing content.