This document discusses unit 2 of the EDUC W200 course, which focuses on how teachers can implement technology into the classroom. It introduces the concept of the "3Es" - effectiveness, efficiency, and enhancement - for evaluating appropriate technology tools. Effectiveness means the tool meets learning goals. Efficiency means it saves time and resources. Enhancement means it provides engaging experiences. Later sections provide examples of how different technologies support the 3Es, such as creating videos to introduce persuasive writing (enhancement) or using online games and tools (efficiency). The document encourages selecting technologies that accomplish one or more of the 3Es criteria.