The use of nuclear power is a socio-scientific issue that is controversial in many areas. Concerns of nuclear power touch on health effects, environmental impacts, employment concerns and energy supply; arguments both for and against it are easily generated. This paper examines the specific aspects addressed by preservice primary teachers in their arguments during their participation in a roleplaying activity on the SSI of nuclear power stations closures in Spain. This was done in order to better understand informal reasoning modes, as well as the possible effect of the roles defended and the design of the staging of the role play. To this end, the transcripts of four role plays were analysed. The data analysis was carried out by open coding, extracting different categories of analysis that were classified into three different informal reasoning modes: environmental, financial and social. The results showed that participants used more environmental-oriented arguments than financial and social ones. Differences in informal reasoning modes were found between some roles and between the two parts of the staging. Some educational implications of these results are discussed, such as providing more information to the participants before the roleplaying activity and emphasising the scaffolding of the social aspects when designing the role play.

The worldwide boom in digital video may be one of the reasons behind the exponential growth of MOOCs. The evaluation of a MOOC requires a great degree of multimedia and collaborative interaction. Given that videos are one of the main elements in these courses, it would be interesting to work on innovations that would allow users to interact with multimedia and collaborative activities within the videos. This paper is part of a collaboration project whose main objective is «to design and develop multimedia annotation tools to improve user interaction with contents». This paper will discuss the assessment of two tools: Collaborative Annotation Tool (CaTool) and Open Video Annotation (OVA). The latter was developed by the aforementioned project and integrated into the edX MOOC. The project spanned two academic years (2012-2014) and the assessment tools were tested on different groups in the Faculty of Education, with responses from a total of 180 students. Data obtained from both tools were compared by using average contrasts. Results showed significant differences in favour of the second tool (OVA). The project concludes with a useful video annotation tool, whose design was approved by users, and which is also a quick and user-friendly instrument to evaluate any software or MOOC. A comprehensive review of video annotation tools was also carried out at the end of the project.El auge del vídeo digital a nivel mundial puede ser una de las causas del crecimiento exponencial de los MOOC. Las evaluaciones de los MOOC recomiendan una mayor interacción multimedia y colaborativa. Siendo los vídeos unos de los elementos destacados en estos cursos, será interesante trabajar en innovaciones que permitan una mayor capacidad a los usuarios para interactuar con anotaciones multimedia y colaborativas dentro de los vídeos. El presente artículo es parte del proyecto de colaboración, cuyo objetivo principal fue «El diseño y creación de herramientas de anotaciones multimedia para mejorar la interactividad de los usuarios con los contenidos». En este artículo mostraremos la evaluación de dos herramientas como fueron Collaborative Annotation Tool (CaTool) y Open Video Annotation (OVA) esta última desarrollada por el proyecto e integrada en el MOOC de edX. El proyecto abarcó dos cursos académicos (2012-14) y se aplicó un instrumento de evaluación en diferentes grupos de la Facultad de Educación a un total de 180 estudiantes. Se compararon los datos obtenidos entre ambas herramientas con contrastes de media, resultando diferencias significativas a favor de la segunda herramienta. Al concluir el proyecto se dispone de una herramienta de anotaciones de vídeo con diseño validado por los usuarios; además de un instrumento sencillo y rápido de aplicar para evaluar cualquier software y MOOC. Se realizó también una revisión amplia sobre herramientas de anotaciones de vídeos.

Complexities of social problems in our globalised world pose new educational challenges, including how to empower citizens for active engagement with socioscientific issues. This study describes the analysis and discussion of an activist video as the first phase in an activist education programme. Participants were 104 preservice primary teachers from the University of Malaga (Spain). Their task was to watch a video about illegal mining in the Venezuelan Amazon and, using the CoAnnotation tool, to annotate the video so as to indicate: the problem they saw as most important, the best solution and ways in which the video could be improved. Students were subsequently shown all the annotations that had been made by the group as a whole so as to facilitate discussion. The content of their annotations was analysed and described using a category system developed by consensus among the research team. The problem most commonly referred to by students was environmental damage. In terms of solutions, the main focus was on raising awareness, although mention was also made of government intervention and both citizen-led and school-based initiatives. As for how the video might be improved as a tool for raising awareness, students made several suggestions regarding its content.

Los portafolios han demostrado ser eficaces en la enseñanza universitaria cuando cumplen ciertos prerrequisitos -p.e. ratio-. La literatura coincide en que no es una metodología generalizada en las universidades. La asignatura del Practicum tiene condiciones favorables para el uso de ePortafolios. Por tanto nos preguntamos: ¿Qué condiciones existen para la utilización de ePortafolios en el practicum de los grados de Educación en España?, ¿qué nivel de utilización hay? y ¿qué problemas de comprensión manifiestan los estudiantes en los ePortafolios? La investigación presenta dos estudios: uno de metodología descriptiva con 31 entrevistas a gestores del Practicum de todos los grados en 10 Facultades de Educación, junto con el análisis de contenidos mediante categoría de 256 guías del Practicum de todos los grados de 36 Facultades de Educación en España. Un segundo estudio de análisis de contenidos analiza las 592 anotaciones de 212 estudiantes al presentar y evaluar las evidencias en el ePortafolios. Los resultados revelan que hay 11 estudiantes por tutor con 2,88h de media para tutorizar y evaluar con ePortafolios. Siendo el correo (entre el 37,77% y el 46,66%) seguido de las plataformas las tecnologías más utilizadas. Las eRúbricas y anotaciones de vídeo ayudan a documentar las evidencias, sin embargo, los estudiantes siguen mostrando dificultades en ciertas competencias