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1.
Stefanie Vanbecelaere Frederik Cornillie Delphine Sasanguie Bert Reynvoet Fien Depaepe 《British journal of educational technology : journal of the Council for Educational Technology》2021,52(1):112-124
Adaptive educational games provide new opportunities to train early numerical skills. However, empirical evidence for the effectiveness of adaptive educational games is scarce. This study investigated the effectiveness of an adaptive game compared to a nonadaptive game in terms of cognitive, noncognitive and efficiency outcomes. In total, 84 children were randomly assigned to a condition in which children trained early numerical skills with an adaptive version of the Number Sense Game (NSG), or to a condition in which they trained with a nonadaptive version. Early numeracy was evaluated before the training, immediately after the training and 3 weeks after the training. Math anxiety (MA) was assessed before and 3 weeks after the training. The time children practiced with the NSG was used to assess efficiency. Results revealed that children in both conditions improved on early numerical ability, with sustained effects 3 weeks after the training. In both conditions, children’s MA scores were lower after the training. Children in the adaptive condition learned more efficiently compared to the nonadaptive condition, and the interaction between prior knowledge and condition has shown that children with low prior knowledge benefited more from a nonadaptive training while children with high prior knowledge benefited more from an adaptive training in terms of learning efficiency. These results confirm that adaptive educational games can offer solace in terms of the need for differentiation. 相似文献
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Marlies Smit‐Kreuzen 《Educational Media International》2013,50(3):168-171
Abstract Many people remember their language lessons from their secondary schooldays as tedious and ineffective. Although the emphasis in language teaching has shifted from the passive skills (reading, listening) to the active skills of speaking and writing, the result after many years of hard work is often disappointing. Learning a language in a classroom environment is extremely difficult. There is no real need to speak or write. Teachers are not interested in the contents of what their students are saying or writing but in the correctness. There is not enough time for the individual student to manipulate and practise what he or she has learned. Motivation is low. Obviously, computers cannot solve these problems. However, they can be used to create a more stimulating environment in which students are given authentic tasks that require a real use of language. If computers are used for practice and drill only, we are missing out on a valuable contribution to language learning and teaching. 相似文献
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Abstract The nature of physics as a scientific discipline is largely determined by the models of reality it utilizes. It is therefore appropriate that teachers of physics have a sound knowledge of the origin and nature of these models, their functions and the role they play in the development of the discipline. The results of a study with regard to the perceptions of models held by prospective physical science (a combination of physics and chemistry) teachers studying at South African universities are reported in this paper. The overall conclusion drawn from the study is that these students are far from prepared to incorporate models properly in their teaching. General misconceptions about models have also been identified. These misconceptions can have far‐reaching effects on the structuring of the physics knowledge of pupils exposed to them. 相似文献
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Vicky Vandenbossche Joris Van de Velde Stind Avet Wouter Willaert Stian Soltvedt Noeska Smit Emmanuel Audenaert 《Anatomical sciences education》2022,15(4):731-744
High-fidelity anatomical models can be produced with three-dimensional (3D) scanning techniques and as such be digitally preserved, archived, and subsequently rendered through various media. Here, a novel methodology—digital body preservation—is presented for combining and matching scan geometry with radiographic imaging. The technique encompasses joining layers of 3D surface scans in an anatomical correct spatial relationship. To do so, a computed tomography (CT) volume is used as template to join and merge different surface scan geometries by means of nonrigid registration into a single environment. In addition, the use and applicability of the generated 3D models in digital learning modalities is presented. Finally, as computational expense is usually the main bottleneck in extended 3D applications, the influence of mesh simplification in combination with texture mapping on the quality of 3D models was investigated. The physical fidelity of the simplified meshes was evaluated in relation to their resolution and with respect to key anatomical features. Large- and medium-scale features were well preserved despite extensive 3D mesh simplification. Subtle fine-scale features, particular in curved areas demonstrated the major limitation to extensive mesh size reduction. Depending on the local topography, workable mesh sizes ranging from 10% to 3% of the original size could be obtained, making them usable in various learning applications and environments. 相似文献
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Robbert Smit Patricia Bachmann Verena Blum Thomas Birri Kurt Hess 《Instructional Science》2017,45(5):603-622
Rubrics are assessment tools that help students gain complex competencies. Our quasi-experimental study aimed to evaluate whether rubrics help teachers teach and assess mathematical reasoning in primary school and whether such an instrument might support student learning. In two Swiss cantons, 762 students in 44 5th- and 6th-grade primary classes worked on their reasoning competencies, and half of them additionally employed our standards-based rubric. All of the teachers received a 1-day training and participated in the final project evaluation. To standardise and support the teachers during the implementation phase, they received a detailed curriculum. An achievement test and questionnaires for students and teachers were administered before and at the end of the intervention. The results of our quantitative longitudinal analyses indicate that the rubric fosters the teachers’ perceived diagnostic skills but only indirectly impacts their use of formative feedback. Based on the students’ perceptions, however, we observed a direct effect of the rubric on formative feedback and student self-assessment. Effects on students’ outcomes could not be observed, but there are indications of effects mediated by self-regulation and self-efficacy. 相似文献
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Cuijpers P Smit F Unger F Stikkelbroek Y Ten Have M de Graaf R 《Child abuse & neglect》2011,35(11):937-945
Objectives
There is much evidence showing that childhood adversities have considerable effects on the mental and physical health of adults. It could be assumed therefore, that the disease burden of childhood adversities is high. It has not yet been examined, however, whether this is true.Method
We used data of a large representative sample (N = 7,076) of the general population in the Netherlands. We calculated the disability weight (DW) for each respondent. The DW is a weight factor that reflects the severity of a disease or condition on a scale from 0 (perfect health) to 1 (equivalent to death). We used an algorithm based on the SF-6D to estimate DW. Because the DW indicates the proportion of a healthy life year that is reduced by the specific health state of the individual, it also possible to calculate the total number of years lost due to disability (YLD) in the population. We calculated the years lived with disability (YLD) for 9 different childhood adversities (in the areas of parental psychopathology; abuse and neglect; major life events), as well as for major categories of mental disorders and general medical disorders.Results
All 9 adversities resulted in a significantly increased DW, except death of a parent before the age of 16. Adversities in the category of abuse and neglect are associated with the highest DWs (0.057), followed by parental psychopathology (0.031) and life events during childhood (0.012). All adversities (46.4% of the population reports one or more adversity) are associated with 20.7 YLD/1,000, which is more than all mental disorders together (12.9 YLD/1,000). The category of abuse/neglect has the highest YLD/1,000 (15.8), which is also higher than all mental disorders together. Adjustment for the presence of mental and general medical disorders resulted in comparable outcomes.Conclusions
Childhood adversities are more important from a public health point of view than all common mental disorders together, and should be a priority for public health interventions. 相似文献8.
The aim of the study was to deepen our understanding of how related multiscreening affects audience memory and persuasion. A survey was administered after a live television show. The results showed that the higher the perceived relatedness of the multi-screen activity, the more persuasive the message. This effect was mediated by subsequent attention to television content, program involvement, and attention to the commercial break. The model was replicated for three different multiscreen activities: social media use, chatting, and information search. Furthermore, it was found that related multiscreening increased the likelihood of respondents staying tuned to the television after the show. 相似文献
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Internal laws of probability, generalized likelihoods and Lewis' infinitesimal chances-A response to Adam Elga 总被引：1，自引：0，他引：1
The rejection of an infinitesimal solution to the zero-fit problemby A. Elga ([2004]) does not seem to appreciate the opportunitiesprovided by the use of internal finitely-additive probabilitymeasures. Indeed, internal laws of probability can be used tofind a satisfactory infinitesimal answer to many zero-fit problems,not only to the one suggested by Elga, but also to the Markovchain (that is, discrete and memory-less) models of reality.Moreover, the generalization of likelihoods that Elga has inmind is not as hopeless as it appears to be in his article.In fact, for many practically important examples, through theuse of likelihoods one can succeed in circumventing the zero-fitproblem.
- 1 The Zero-fit Problem on Infinite State Spaces
- 2Elga's Critique of the Infinitesimal Approach to the Zero-fitProblem
- 3 Two Examples for Infinitesimal Solutions to theZero-fit Problem
- 4 Mathematical Modelling in Nonstandard Universes?
- 5 Are Nonstandard Models Unnatural?
- 6 Likelihoods and Densities
- A Internal Probability Measures and the Loeb Measure Construction
- B The (Countable) Coin Tossing Sequence Revisited
- C Solutionto the Zero-fit Problem for a Finite-state Modelwithout Memory
- D An Additional Note on ‘Integrating over Densities’
- E Well-defined Continuous Versions of Density Functions
- 2Elga's Critique of the Infinitesimal Approach to the Zero-fitProblem
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Saskia Corine van de Zande Jeroen Klaas de Vries Inge van den Akker-Scheek Johannes Zwerver Andries Jan Smit 《运动与健康科学(英文)》2022,11(2):260-265
Background:Physical activity(PA)has substantial health benefits and is important in combatting chronic diseases,which have been associated with elevated levels of advanced glycation endproducts(AGEs).AGEs play a role in the aging process,and an association between PA and AGEs has been reported.We aimed to investigate the relationship between PA and AGE accumulation in a general population and in a population with chronic diseases.Methods:This large cross-sectional population study used data from adult participants in the LifeLines project,with participant information drawn from the LifeLines database as well data from patients with diabetes mellitus or renal and/or cardiovascular diseases.Tissue AGE accumulation was assessed non-invasively by skin-autofluorescence(SAF)using an AGE reader(DiagnOptics Technologies BV,Groningen,the Netherlands).PA was assessed using the short questionnaire to assess health-enhancing physical activity(SQUASH).Multivariate linear regression analyses were adjusted for age,body mass index,sex,and smoking status.Results:Data from 63,452 participants(general population n=59,177,chronic disease n=4275)were analyzed.The general population was significantly younger(43.58±11.77 years,mean±SD)and had significantly lower SAF(1.90±0.42 arbitrary units(AU))compared to the population with chronic disease(age:55.51±12.07 years;SAF:2.27±0.51 AU).In the group with chronic disease,more hours of moderate to vigorous physical activities per week were associated with lower SAF(β=-0.002,95%confidence interval(95%CI):-0.002 to-0.001).For the general population,there was no association between hours of moderate to vigorous activity and SAF(β=3.2×10-5,95%CI:0.000-0.001,p=0.742).However,there was an association in the general population between total hours of PA per week and SAF(β=4.2×10-4,95%CI:0.000-0.001,p<0.001),but this association was not found in the chronic disease population(β=-3.2×10-4,95%CI:-0.001 to 0.000,p=0.347).Conclusion:Our study demonstrates that an inverse relationship exists between PA and AGE accumulation in the population with chronic disease.More hours of moderate to vigorous activity is associated a significantly decreased SAF.More PA is associated a lower SAF,even after for the established predictors(age,body mass index,smoking status,and sex).Our findings could help to promote health and prolong longevity. 相似文献