This document discusses the role of teachers and technology in classroom teaching. It argues that technology should be integrated into the teaching and learning process as a series of actions and changes that bring about learning, rather than as isolated activities. When used effectively, technology can help teachers deliver instruction in a learner-centered way and allow students and teachers to collaborate. However, simply introducing new hardware and software is not enough - technology must be implemented based on educational principles and theories of learning. The document examines how technology can support teachers' productivity and professional practice by allowing them to more easily communicate, collaborate, manage data and enhance instruction.