MOOC are characterized as being courses to which a large number of students enroll, but only a small fraction completes them. An understanding of students' engagement construct is essential to minimize dropout rates. This research is of a quantitative design and exploratory in nature, and investigates the interaction between contextual factors (demographic characteristics), student engagement types (academic, behavioral, cognitive and affective), and learning outcomes, with the objective of identifying the factors that are associated with completion of massive and open online courses. Two logistic models were adjusted in two samples, general and secondary, with the binary dependent variable defined as completes the course yes/no. The results in the general sample (15% completion rate) showed that the probabilities of a participant completing the course are positively and significantly related to participation in the forum and the participant educational level, and negatively related to gender (female) and age. The results in the secondary sample (87% completion rate) showed that the probabilities of a participant completing the course are positively and significantly related to participation in the forum,  gender (female), and the motivation and satisfaction indexes, and negatively related to age, having previous experience in other MOOC, and self-efficacy and task strategies indexes. The results lead to ideas on how these variables can be used to support students to persist in these learning environments.

MOOCs are presented as an affordable and easily accessible modality that offers the opportunity to democratize education in our time; however, this convenience training favors a low completion rate of the participants. Faced with this situation, scholars have suggested that it is necessary to deepen the construct of academic engagement, a concept that has been addressed in the study of face-to-face training, to better understand how students participate in this educational modality. This article systematically explores the existing literature, in the period of 2015-2018, about the construct of academic engagement in online, massive and open learning courses, through a Systematic Mapping of Literature, a method which aims to identify the characteristics of production in a given subject. The results show that there is a considerable increase in published articles that associate academic engagement and MOOCs, mainly from the United States, Australia, and the United Kingdom. Most of the mapped publications employ qualitative methods, with an exploratory approach, although there are several correlational studies. The study of participation patterns and instructional design appear as the main topics of interest in the field. In addition to providing a general overview of production on the subject, the research provides accurate information that will identify works for more in-depth reviews. Thus, it also offers a replicable and flexible literature search method for different research interests.

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Las redes de colaboración potencialmente permiten el desarrollo de innovaciones que generan cambios de alto impacto. Los miembros de una red de esta índole tienen siempre objetivos en común, pero también se caracterizan por tener una amplia diversidad de perfiles: distintos idiomas, disciplinas, experiencias profesionales y niveles educativos, entre otras cualidades. Esto puede, en ocasiones, dificultar el entendimiento entre ellos cuando se ha de trabajar colaborativamente. Este artículo presenta el caso de estudio de una red de innovación educativa; se describe su propósito, su dinámica de trabajo y una serie de tensiones experimentadas en procesos de colaboración. Las tensiones son retos a superar derivados de un trabajo entre personas con características múltiples; y representan conexiones entre los nodos de una red que deben ser atendidas para evitar posibles rupturas. Las tensiones detectadas se tomaron como oportunidades para crear una propuesta de modelo para la colaboración. Dicho modelo tiene como objetivo facilitar los procesos de comunicación y trabajo entre los integrantes de un grupo, promoviendo una colaboración más eficiente.