This document discusses the use of technology in 21st century classrooms. It outlines several technologies used like Skype, clickers, whiteboards and projectors. It also discusses mobile learning using devices like iPads, smartphones and e-readers. The document addresses costs of technology for public and private schools and the advantages of technology over textbooks. It provides examples of classroom technologies like SMART boards and educational games that improve student engagement and testing programs like Accelerated Reader.