It has often been said that the quality of an online course can be assessed through the quality of the interaction.

The fact that Moodle makes it possible to have high-quality, personalized, and very meaningful interaction means that it is possible to construct high-quality courses, and to engage multiple strategies in order to achieve the desired learning outcomes. In this chapter we will review the benefits of structuring a course around collaborative activities such as those found in Forums and in Chat. We will discuss what unique benefits can be found in Chat activities, and we will review how to build chat rooms and how to construct productive questions to use in Chat.