Search results for "methods"
showing 10 items of 4526 documents
Lattice Boltzmann Simulations at Petascale on Multi-GPU Systems with Asynchronous Data Transfer and Strictly Enforced Memory Read Alignment
2015
The lattice Boltzmann method is a well-established numerical approach for complex fluid flow simulations. Recently general-purpose graphics processing units have become accessible as high-performance computing resources at large-scale. We report on implementing a lattice Boltzmann solver for multi-GPU systems that achieves 0.69 PFLOPS performance on 16384 GPUs. In addition to optimizing the data layout on the GPUs and eliminating the halo sites, we make use of the possibility to overlap data transfer between the host CPU and the device GPU with computing on the GPU. We simulate flow in porous media and measure both strong and weak scaling performance with the emphasis being on a large scale…
Visual Distraction Effects of In-Car Text Entry Methods
2017
Three text entry methods were compared in a driving simulator study with 17 participants. Ninety-seven drivers’ occlusion distance (OD) data mapped on the test routes was used as a baseline to evaluate the methods’ visual distraction potential. Only the voice recognition-based text entry tasks passed the set verification criteria. Handwriting tasks were experienced as the most demanding and the voice recognition tasks as the least demanding. An individual in-car glance length preference was found, but against expectations, drivers’ ODs did not correlate with incar glance lengths or visual short-term memory capacity. The handwriting method was further studied with 24 participants with instru…
Innovators and innovated: Newspapers and the postdigital future beyond the “death of print”
2017
Along with other cultural organizations, newspapers, through waves of digital disruption, have become subject to a dominant narrative of crisis. But newspapers have long participated in change. A constructivist approach, qualified by consideration of media materiality, draws attention to diverse but essential processes of innovation around them. We see a contraflow of migration from digital to print, opening up a shared media space; bonding strategies are bringing multimedia to ink on paper, while bridging via boundary objects such as QR (Quick Response) codes are connecting the two. Among other initiatives, development of automation of news production and experiments with transparency are …
Teachers' effect on learners' willingness to communicate in L2
2014
Kielenopetuksen tutkimuksessa sekä pedagogiikassa on viime vuosina korostettu merkityksellistä viestintää, minkä johdosta myös oppijan halu viestiä vieraalla kielellä on noussut alan tutkimuksessa keskiöön. Kasvavasta kiinnostuksesta huolimatta on opettajan käytöksen ja opetusmenetelmien vaikutus oppilaiden kielenkäytön halukkuuteen toistaiseksi melko vähän tutkittu tekijä. Tästä syystä tämä tutkielma selvittää suomalaisten kielenoppijoiden käsityksiä siitä, kuinka opettajien käytös ja opetusmenetelmät vaikuttavat heidän valmiuteensa käyttää englantia opetustilanteessa. Lisäksi tutkimuksessa raportoidaan oppilaiden ajatuksia siitä, millä tavoin opettaja pystyy käytöksellään nostamaan oppila…
Scaffolding teachers to foster inclusive pedagogy and presence through collaborative action research
2017
Teachers can be influential change agents in transforming their schools if they regularly reflect on their pedagogical practices, looking for improvements that will help all learners reach their fu...
Fostering Heuristic Strategies in Mathematics Teacher Education
2018
International audience; The “double discontinuity” stated by Felix Klein 1908 is still relevant in the mathematics teacher education at German universities. We are developing a course approach, which is intended to bridge the double discontinuity in a didactic dimension. We offer additional learning opportunities for teacher students, which are characterized by clarifications of mathematical methods that are fundamental to the regular lecture contents. We focus especially on reflections on heuristic strategies, which are the core part of mathematical methods according to George Pólya. Feedback shows that students consider our approach as helpful in the transition from school to university.
Drawing Cartoon Strips as a Learning Tool in Fostering the Learning of Titration in Pre-service Chemistry Education
2021
In this study, static visual displays of titration created by the university-level pre-service chemistry education students was investigated. The aim for the students was to learn the theory of titrations, using self-prepared cartoon strips with supportive texts. Attention was paid to the titration cartoon strips students made which were suitable for both learning and teaching purposes. The basis of this study was students’ own drawings: students observed and visualized the titration process, and built their own representation of it. Simple models were created using pencil and paper. The goals were to determine how students regard the learning tool, how drawing cartoon strips helps their le…
Tipologie di ricerca didattica in Italia (2016-2018)
2020
In Italia, nel triennio 2016-2018, si è fatta ricerca didattica sul processo di insegnamento- apprendimento in tre modi: l’analisi fenomenologica e l’osservazione della dimensione quantitativa della realtà educativa; la costruzione di categorie interpretative del collegamento delle azioni dei docenti con i cambiamenti osservati nei discenti; la formulazione di principi e orientamenti per la pratica didattica. I temi delle ricerche didattiche svolte nel periodo sono raggruppabili in quattordici aree: la didattica universitaria, la didattica inclusiva, la didattica interculturale, la didattica orientativa, la didattica metacognitiva, la raccolta e l’analisi di pratiche didattiche, le nuove te…
Teaching classic put to the test: Do tongue twisters work for L2 pronunciation?
2023
Tongue twisters are a controversial pronunciation teaching classic. Whereas some see tongue twisters difficult and frustrating for learners, others find them fun and motivating. This study was inspired by these opposing views and the fact that previous studies have failed to offer convincing proof of whether this technique works for L2 pronunciation learning. This study approaches the question with a teaching experiment. Participants were 28 learners of L2 Swedish. Half of them trained with tongue twisters and half with authentic sentences. Training focussed on two sounds typically difficult for the learners, who were tested before and after the training period. Further, the participants we…
Evaluer un dispositif de formation à distance : Principes et retour d'expérience
2008
The multiplication of distance learning platforms and the complexity of some of those used within the university system raise questions. First of all, the stabilization of writing practices of digital documents. Secondly, the evaluation of these devices. We want to address this last point in this article. What is it possible to assess in this field? There are many dimensions of evaluation, depending on the angle chosen. We limit ourselves to an approach focused on evaluating the human-computer interface. The chosen testing ground is a website for law studies, developed by the University of Burgundy's further education section.