This paper exhibits the preliminary results of a study, which aims to formulate theoretical and methodological guidelines for the configuration of network learning environments in university classrooms. Particularly, results about interaction levels and the correlation with the academic performance, at the postgraduate course of the Cooperative University of Colombia, integrated by 27 participants. The study has a varied approach, applied type, and descriptive scope. A face-to-face learning environment was designed that encourages interaction; One of the activities was in groups of 4 or 5 people, in which roles were assigned and WhatsApp was used as a communication platform . Through categories, an analysis of the content of the messages issued in WhatsApp groups was carried out, which allowed one to measure the interaction frequency and quality in a learning environment, and correlate it with academic performance. The results point towards two important considerations: i ) although there is an important correlation between interaction and academic performance, there is nothing conclusive about it, and ii) the correlation between academic performance and interaction is higher when it is calculated based on the participation frequency, than strictly the quality
