How temporal and spatial aspects of presenting visualizations affect learning about locomotion patterns

Two studies investigated the effectiveness of dynamic and static visualizations for a perceptual learning task (locomotion pattern classification). In Study 1, seventy-five students viewed either dynamic, static-sequential, or static-simultaneous visualizations. For tasks of intermediate difficulty, dynamic visualizations led to better classification performance than static-sequential visualizations, but not than static-simultaneous visualizations. To test whether the temporal aspects of presenting static-simultaneous visualizations (i.e., their permanent visibility) or their spatial aspects (i.e., their arrangement in rows) accounted for this effect, Study 2 investigated three additional static-simultaneous conditions. Seventy-five students viewed static-simultaneous visualizations presented either in columns, matrices, or circles. For tasks of intermediate difficulty dynamic visualizations outperformed pictures presented in columns, matrices, and circles, but not the rows format. Accordingly, for learning about locomotion patterns, dynamic visualizations are better suited than most, but not all static visualization formats. From a practical point of view, effort should be invested into the design of static-simultaneous visualizations to further optimize instructional materials.     

Explaining the modality effect in multimedia learning: Is it due to a lack of temporal contiguity with written text and pictures?

The study examined whether the modality effect is caused by either high visuo-spatial load or a lack of temporal contiguity when processing written text and pictures. Students (N = 147) viewed pictures on the development of tornados, which were accompanied by either spoken or written explanations presented simultaneously with, before, or after the pictures. For verbal recall no modality effect was observed, whereas for transfer the influence of modality varied as a function of phonological working memory capacity. For pictorial recall the results showed a modality effect that was limited to simultaneous presentation, apparently in line with the temporal contiguity explanation. However, spoken simultaneous presentations were not superior to spoken sequential presentations, which contradicts the temporal contiguity explanation for the modality effect. Rather, it seems as if learners with simultaneous presentation of written text and picture concentrated more on the text and ignored the pictures, resulting in worse pictorial recall.     

Conveying clinical reasoning based on visual observation via eye-movement modelling examples

Complex perceptual tasks, like clinical reasoning based on visual observations of patients, require not only conceptual knowledge about diagnostic classes but also the skills to visually search for symptoms and interpret these observations. However, medical education so far has focused very little on how visual observation skills can be efficiently conveyed to novices. The current study applied a novel instructional method to teach these skills by showing the learners how an expert model visually searches and interprets symptoms (i.e., eye-movement modelling examples; EMMEs). Case videos of patients were verbally explained by a model (control condition) and presented to students. In the experimental conditions, the participants received a recording of the model’s eye movements superimposed on the case videos. The eye movements were displayed by either highlighting the features the model focused on with a circle (the circle condition) or by blurring the features the model did not focus on (the spotlight condition). Compared to the other two conditions, results show that a spotlight on the case videos better guides the students’ attention towards the relevant features. Moreover, when testing the students’ clinical reasoning skills with videos of new patient cases without any guidance, participants studying EMMEs with a spotlight showed improved their visual search and enhanced interpretation performance of the symptoms in contrast to participants in either the circle or the control condition. These findings show that a spotlight EMME can successfully convey clinical reasoning based on visual observations.     

“Languages aren’t as important here”: German migrant teachers’ experiences in Australian language classes

Narrative studies with migrant teachers offer new perspectives on local educational practices and policies. As part of a study investigating German migrant teachers’ experiences in Australian language classes, this paper uses narratives to evaluate present language education strategies in Germany and Australia. It examines the provision and uptake of foreign languages as a subject area in the two countries and compares existing educational goals and arrangements regarding language education in Germany and Australia. The German migrant teachers’ accounts illustrate how current school policies and the value placed on language proficiency and multilingualism in the two countries’ education are impacting on learning and teaching in the language classroom. The findings have significant potential to inform and stimulate the evaluation of recent national initiatives in language education in Australia.     

Trust and Trustworthiness in Anonymous Virtual Worlds

Virtual communities like Second Life (SL) represent an economic factor with increasing potential, but may induce behavior that deviates from real-world experience. This article introduces a new experimental design that is based on the trust game (Berg, Dickhaut, & McCabe, 1995 Berg, J., Dickhaut, J. and McCabe, K. A. 1995. Trust, reciprocity, and social history. Games and Economic Behavior, 10: 290–307.  [Google Scholar]), but eliminates the problem of multiple virtual identities. One treatment of the experiment in the virtual world SL was conducted and the results compared to the First Life (FL) control treatment, which was conducted on a university campus. In SL, significantly lower investment levels were found, but significantly higher average returns were found than in the FL treatment or in the literature. It is conjectured that the disparity between trusting and trustworthy behavior is a sign that the social structure in SL is still evolving. It seems plausible that the trustors in a young and developing society cautiously test the extent of trustworthiness, whereas the trustees strategically invest in levels of trustworthiness that are higher than in settled societies to build up a trustworthy environment.     

The Discovery–Collection Librarian Connection: Cultivating Collaboration for Better Discovery

Discovery layers and remote access are the standard way to access and find academic library resources, making metadata, link resolvers, and indexing important considerations at the time of selection and throughout the lifespan of an electronic resource. Collection development librarians must be aware of how resources will function with and appear in the library's discovery layer. This awareness is an opportunity for collection development and discovery librarians to share their knowledge and collaborate to provide the best discovery for the library's resources. This case study examines ways the Electronic Access and Discovery unit at Auraria Library has fostered that relationship.     

Teaching Nature of Scientific Inquiry in Chemistry: How do German chemistry teachers use labwork to teach NOSI?

Learning about scientific inquiry (SI) is an important aspect of scientific literacy and there is a solid international consensus of what should be learned about it. Learning about SI comprises both the doing of science (process) and knowledge about the nature of scientific inquiry (NOSI). German reform documents promote inquiry generally but do not equally address these two sides of inquiry. This study explores how teachers incorporate learning about SI into laboratory work in the Chemistry classroom. Semi-structured interviews were conducted with 14 secondary school Chemistry teachers (8 of them holding a Ph.D. in Chemistry) from Germany. The results indicate that teaching NOSI is not a primary goal for teachers. Still, some aspects of NOSI seem to be more easily incorporated in the Chemistry classroom, for example, critical testing and hypothesis and prediction. Teachers state 2 main criteria to identify suitable chemical laboratory work for teaching NOSI: adaptable parameters and low level of required content knowledge. Surprisingly, differences can be found between Ph.D. and non-Ph.D. teachers’ views on teaching inquiry. The findings of this study can be used to (a) select opportunities for targeted research on teaching NOSI in the Chemistry classroom, (b) inform curriculum material development and (c) give impetus to science teacher education and professional development.