A model of the symmetric group S4 used as a means of teaching fundamental algebraic concepts     

H. P. Hahn 《Educational Studies in Mathematics》1975,6(1):99-111

  相似文献   

Das Spiel in der Leibeserziehung und im Sport     

E. Hahn 《Sportwissenschaft》1975,5(2):200-201

  相似文献   

Survey Says…?: Assessing Interlibrary Loan/Document Delivery Use and Awareness for Responsive Service Delivery     

Zheng Ye Yang  Susan G. Goodwin  Doug Hahn 《Journal of Interlibrary Loan, Document Delivery & Electronic Reserve》2019,28(5):151-173

Abstract

The object of this study is to assess Texas A&M University (TAMU) students/faculty/staff members’ use and awareness of the Libraries’ free document delivery and interlibrary loan service, branded as “Get It For Me.” Since 2010, we have continued to see a decline in new user registrations each year. Previous Get It For Me user surveys conducted in 2003 and 2011 indicated that the overall satisfaction of registered users was high and customer feedback gleaned from these surveys was used to initiate a number of service improvements. But what about the large percentage of the campus community who do not use the Get It For Me service? Are they aware of what this service has to offer? If so, why might they choose not to use it? If they are not aware of the service, might they use it if they knew more about how it can assist them in their scholarly endeavors? Instead of only surveying those customers who have used this service, we invited everyone on TAMU College Station campus to participate in the survey. Promoting the service is a vital component of service delivery.  相似文献   

Infant Temperament: Stability by Age,Gender, Birth Order,Term Status,and Socioeconomic Status          下载免费PDF全文

Marc H. Bornstein  Diane L. Putnick  Maria A. Gartstein  Chun‐Shin Hahn  Nancy Auestad  Deborah L. O'Connor 《Child development》2015,86(3):844-863

Two complementary studies focused on stability of infant temperament across the 1st year and considered infant age, gender, birth order, term status, and socioeconomic status (SES) as moderators. Study 1 consisted of 73 mothers of firstborn term girls and boys queried at 2, 5, and 13 months of age. Study 2 consisted of 335 mothers of infants of different gender, birth order, term status, and SES queried at 6 and 12 months. Consistent positive and negative affectivity factors emerged at all time points across both studies. Infant temperament proved stable and robust across gender, birth order, term status, and SES. Stability coefficients for temperament factors and scales were medium to large for shorter (< 9 months) interassessment intervals and small to medium for longer (> 10 months) intervals.  相似文献   

Determination of the centre of mass kinematics in alpine skiing using differential global navigation satellite systems     

Matthias Gilgien  Jörg Spörri  Julien Chardonnens  Josef Kröll  Philippe Limpach  Erich Müller 《Journal of sports sciences》2015,33(9):960-969

In the sport of alpine skiing, knowledge about the centre of mass (CoM) kinematics (i.e. position, velocity and acceleration) is essential to better understand both performance and injury. This study proposes a global navigation satellite system (GNSS)-based method to measure CoM kinematics without restriction of capture volume and with reasonable set-up and processing requirements. It combines the GNSS antenna position, terrain data and the accelerations acting on the skier in order to approximate the CoM location, velocity and acceleration. The validity of the method was assessed against a reference system (video-based 3D kinematics) over 12 turn cycles on a giant slalom skiing course. The mean (± s) position, velocity and acceleration differences between the CoM obtained from the GNSS and the reference system were 9 ± 12 cm, 0.08 ± 0.19 m · s^-1 and 0.22 ± 1.28 m · s^-2, respectively. The velocity and acceleration differences obtained were smaller than typical differences between the measures of several skiers on the same course observed in the literature, while the position differences were slightly larger than its discriminative meaningful change. The proposed method can therefore be interpreted to be technically valid and adequate for a variety of biomechanical research questions in the field of alpine skiing with certain limitations regarding position.  相似文献   

Automated vehicles and the morality of post-collision behavior     

Krügel  Sebastian  Uhl  Matthias  Balcombe  Bryn 《Ethics and Information Technology》2021,23(4):691-701

Ethics and Information Technology - We address the considerations of the European Commission Expert Group on the ethics of connected and automated vehicles regarding data provision in the event of...  相似文献   

Teaching Physical Education — A Systems Approach     

Robert N. Singer  Walter Dick  H. Hahn 《Sportwissenschaft》1975,5(2):198-199

  相似文献   

Pedagogical content knowledge of experts and novices—what knowledge do they activate when analyzing science lessons?          下载免费PDF全文

Matthias Krepf  Wilfried Plöger  Daniel Scholl  Andreas Seifert 《科学教学研究杂志》2018,55(1):44-67

In the current debate on pedagogical content knowledge (PCK), the term is used to refer to the context‐specific knowledge that teachers activate when reflecting on practice. Against the background of this debate, we conducted an empirical study and sought to answer the question of which knowledge experts and novices activated in assessing a videotaped lesson in relation to its effectiveness for learning. Our assumption was that the participants activate their PCK as a blending of content knowledge (CK) and pedagogical knowledge (PK) as suggested by Shulman's amalgam thesis. The participants (9 experts and 9 novices) were shown a lesson on optics, in which the law of refraction (Snell's law) was being studied. In a subsequent interview, the participants were asked to analyze the observed lesson. A qualitative and quantitative evaluation of the interviews showed that experts activated both CK and PK intensively and in this respect they differed significantly from novices. Further analysis of the expert statements also proved that they do not activate their CK and PK in isolation, but instead combine both kinds of knowledge together, in line with Shulman's amalgam thesis. © 2017 Wiley Periodicals, Inc. J Res Sci Teach 55: 44–67, 2018  相似文献   

Does the accuracy matter? Accurate concept map feedback helps students improve the cohesion of their explanations     

Andreas Lachner  Iris Backfisch  Matthias Nückles 《Educational technology research and development : ETR & D》2018,66(5):1051-1067

Students are often challenged by the demand of writing cohesive explanatory texts. Prior research has shown that providing students with concept map feedback that visualizes explanatory cohesion deficits helped students generate more cohesive explanations. We conducted an experiment to investigate whether the accuracy of the provided information within the concept map feedback affected students’ improvements of cohesion. Accordingly, we varied the represented accuracy of information within such concept maps: Students either received accurate concept map feedback that depicted the real relations between concepts, as well as the authentic cohesion gaps in their explanations, or students received inaccurate concept map feedback, which depicted randomly drawn relations and random cohesion gaps. Additionally, in a baseline condition, students did not receive any feedback. We found that the students in the accurate feedback condition generated more cohesive explanations than the students in the no-feedback condition, whereas the students in the inaccurate feedback condition lay in-between. Evidently, providing feedback in general can be regarded as beneficial to enhance students’ writing. However, the accuracy of the provided feedback further impacts the effectiveness of computer-generated concept maps.  相似文献   

Simulation research and design: a dual-level framework for multi-project research programs     

Fink  Maximilian C.  Radkowitsch  Anika  Bauer  Elisabeth  Sailer  Michael  Kiesewetter  Jan  Schmidmaier  Ralf  Siebeck  Matthias  Fischer  Frank  Fischer  Martin R. 《Educational technology research and development : ETR & D》2021,69(2):809-841

Collaborations between researchers and practitioners have recently become increasingly popular in education, and educational design research (EDR) may benefit greatly from investigating such partnerships. One important domain in which EDR on collaborations between researchers and practitioners can be applied is research on simulation-based learning. However, frameworks describing both research and design processes in research programs on simulation-based learning are currently lacking. The framework proposed in this paper addresses this research gap. It is derived from theory and delineates levels, phases, activities, roles, and products of research programs to develop simulations as complex scientific artifacts for research purposes. This dual-level framework applies to research programs with a research committee and multiple subordinate research projects. The proposed framework is illustrated by examples from the actual research and design process of an interdisciplinary research program investigating the facilitation of diagnostic competences through instructional support in simulations. On a theoretical level, the framework contributes primarily to the literature of EDR by offering a unique dual-level perspective. Moreover, on a practical level, the framework may help by providing recommendations to guide the research and design process in research programs.

  相似文献