Hydrolates and Gellan: An Eco-innovative Synergy for Safe Cleaning of Paper Artworks

The gellan hydrogel is used as a cleaning agent for paper artworks. The purposes of this work were to give the gellan hydrogel both a microbial resistance and a cytocidal action against the biodeteriogens using hydrolates. Broth microdilution assays were performed to identify the fungicidal action of 16 hydrolates vs 3 fungal strains. The study concerned the Minimal Fungicidal Concentration and pH, colour, and ultra-structural variations on all paper samples, by placing them in contact with GELYD (GELlan?+?hYDrolat). The in vitro tests showed that eight out of 16 hydrolates strongly inhibited fungal growth, but only two of them (Monarda fistulosa, Citrus aurantium subsp amara) showed in situ fungicidal action. Data indicate a new and interesting eco-innovative use of hydrolates, since GELYD is able not only to clean paper artworks, but also to kill the fungal cells present on paper that are potentially harmful for paper and operators.     

Building a future without gender violence: rural teachers and youth in rural KwaZulu-Natal,South Africa,leading community dialogue

This article advances the idea that rural youth and teachers are the key in leading community dialogue towards addressing gender-based violence (GBV) in their community through their film making. The youth voices on the realities of GBV in their school and community, in rural KwaZulu-Natal, South Africa, captured through the process of participatory video, are used to engage a group of their teachers in thinking about addressing GBV in the school and community. The teachers' engagement with the five participatory videos on GBV – through participatory analysis and participatory archiving – provided an opportunity to deepen their understanding of GBV by also interrogating their own stance and led them to direct the production of a composite video suitable for use in leading community dialogue on a future without violence.     

Correction to: Development of Children’s monitoring and control when learning from texts: effects of age and test format

Metacognition and Learning - The article Development of Children’s monitoring and control when learning from texts: effects of age and test format, written by Martina Steiner, Mariëtte...     

The use of computer games as an educational tool: identification of appropriate game types and game elements

Playing games is an important part of our social and mental development. This research was initiated to identify the game type most suitable to our teaching environment and to identify game elements that students found interesting or useful within the different game types. A group of twenty students played four commercial games (SimIsle, Red Alert, Zork Nemesis and Duke Nukem 3D). Results suggest that students prefer 3D-adventure (Zork Nemesis) and strategy (Red Alert) games to the other types ("shoot-em-up", simulation) with Zork Nemesis ranked as the best. Students rated game elements such as logic, memory, visualisation and problem solving as the most important game elements. Such elements are integral to adventure games and are also required during the learning process. We present a model that links pedagogical issues with game elements. The game space contains a number of components, each encapsulates specific abstract or concrete interfaces. Understanding the relationship between educational needs and game elements will allow us to develop educational games that include visualisation and problem solving skills. Such tools could provide sufficient stimulation to engage learners in knowledge discovery, while at the same time developing new skills.     

Story problems in the deaf education classroom: frequency and mode of presentation

Over the past decade, curricular reform in mathematics education has emphasized the use of problem solving at all levels of instruction for all students, but adaptations for students with unique needs have not been specified. This study investigated the nature of problem solving in deaf education, focusing in particular on the use of story problems in the primary-level curriculum. Approximately 90% of the K-3 teachers from five schools for the deaf were asked with what frequency and in which communication mode they presented story problems to their students. Most teachers reported presenting story problems 1-3 times per week, and presentation method tended to reflect school communication philosophy. We found trends in story problem presentation in accordance with the mathematics grade level taught. We discuss implications for curricular reform and teacher education.     

Transforming learning infrastructures in the social sciences through flexible and interactive technology-enhanced learning

The changing higher educational landscape in Europe creates new learning infrastructures and transforms existing ones. Students are thus provided with new possibilities and challenges. Through the case study of a newly developed common curriculum for the social sciences of a public university in Austria, this article discusses the interacting social agents, elements, and tools of a flexible and interactive technology-enhanced learning model. In doing so, the transnational, national, and local infrastructural conditions and challenges are critically examined from a socio-technological perspective. Selected evaluation and survey results highlight students’ learning practices, usage behavior, and suggestions to improve their learning situation. The article concludes that student-centered learning models focusing on flexibility and interactivity can support the stable implementation of a common curriculum and its technology-enhanced learning infrastructure for the social sciences at public universities with high student numbers.     

A comparison of non-verbal and verbal indicators of young children’s metacognition

Metacognition and Learning - In the past decade, research increasingly uncovers emerging metacognitive skills in young children by using child-friendly, creative, and non-verbal measures of...     

The role of non-formal contexts in teacher education for STEM: the case of horno3 science and technology interactive centre

Abstract

Teacher education can benefit directly from experiences in non-formal settings. This article presents a research study with elementary teachers who were teaching in public schools in the state of Nuevo León, México, and participated in a STEM Continuous Professional Development (CPD) workshop. The workshop provided a platform for teachers to interact with scientists and disseminators of science, allowing the appropriation of scientific knowledge applied to everyday activities and settings. Participants improved the quality of their teaching practices in classrooms and gained a new understanding of STEM subjects, enabling them to promote inspiring learning experiences with their students, where dialogue, experimentation and elucidation became an important part of their lessons. The study was carried out using ethnographic tools for analysing recorded videos, 15 sets of field notes, and 49 questionnaires. The sequential analysis of talk and gestures in their participation in the CPD workshop demonstrated high levels of involvement, creativity, and collaborative solution of STEM problems.     

An investigation of the relationship between cognitive complexity and listener‐adapted communication

This study investigated the hypothesis that dyads composed of two cognitively complex individuals would be more successful at a communication task than would dyads composed of two individuals who are both noncomplex. Another hypothesis was that mixed dyads (one person complex, one noncomplex) would be more effective than noncomplex dyads but not as effective as complex dyads. The data supported the hypotheses. When both members of a dyad were complex or when the complex member of a mixed dyad was the person giving directions, the directions were more effective than when both members are noncomplex or when the noncomplex member of a mixed dyad was giving directions.