Chapter 5 The PeerLearn Application Dave de Jonge, Bruno Rosell, Patricia Gutierrez, Nardine Osman, and Carles Sierra There are a number of available tools that support teachers in the management of les- son plans on the web. However, none of them is task-centred and support any form of lesson plan’s execution over the web. PeerLearn is an application that allows both the design and the execution of lesson plans, where lesson plans are designed with respect to a selected rubric. PeerLearn uses electronic institutions to coordinate in- teractions, ensuring the rules set by the lesson plan are followed, and it relies on a trust-based model to calculate automated marks. The automated marks provide tremendous support for teachers when their online classrooms have massive num- bers of students. This chapter provides an overview of the PeerLearn application, describes its underlying electronic institution, and presents a brief introduction to its automated assessment technology. 5.1 Objectives Online education has regained popularity in recent years due to the MOOC phe- nomenon. In this section, we present a pedagogical framework for online learning support in the context of communities of learners. The goal is to help tutors man- Dave de Jonge Western Sydney University, Sydney, e-mail: d.dejonge@westernsydney.edu.au Bruno Rosell IIIA-CSIC, Barcelona, e-mail: rosell@iiia.csic.es Patricia Gutierrez Amazon.com, Madrid, e-mail: gupatric@amazon.com Nardine Osman IIIA-CSIC, Barcelona, e-mail: nardine@iiia.csic.es Carles Sierra IIIA-CSIC, Barcelona, e-mail: sierra@iiia.csic.es 97