This document discusses moving from textbook-based teaching to online teaching. It begins with introductions and background about the author. It then discusses the differences between traditional face-to-face teaching, technology-enhanced teaching, web/online-enhanced teaching, blended learning, and online learning. It provides examples of what student and teacher roles and responsibilities look like across these continua. It also addresses definitions of and approaches to blended learning. The document aims to help teachers identify where their current practices fall and how they may evolve their practices toward more online or student-centric models.