This document discusses the impact of digital technologies on teaching and learning. It notes that while the first revolution came with language and the second with printing, the third revolution occurred with the rise of computers and the internet in the late 20th century. This digital environment has created a gap between today's tech-savvy students and many of their teachers. The document provides guidance for teachers to discover the digital world and develop new digital literacies, including information fluency and media fluency. It also explores how ICT changes the roles of both teachers and students, shifting them towards more active and collaborative learning. Effective internet learning activities are also discussed.