Exploration of experimental design and statistical methods using the stick‐on‐the‐wall spaghetti rule          下载免费PDF全文

Simone Montangero  Francesca Vittone  Sally Olderbak  Oliver Wilhelm 《Teaching Statistics》2018,40(2):40-45

We present a versatile scenario to introduce students to statistics: the test that spaghetti sticks only if sufficiently done. The statistical analyses can be performed at different levels of complexity and formal correctness, adapting it to the students' age.  相似文献   

An integrated approach to develop professional and technical skills for informatics engineering students     

João M. Fernandes  Natascha van Hattum-Janssen  António Nestor Ribeiro  Victor Fonte  Luís Paulo Santos  Pedro Sousa 《European Journal of Engineering Education》2012,37(2):167-177

Many of the current approaches used in teaching and learning in engineering education are not the most appropriate to prepare students for the challenges they will face in their professional careers. The active involvement of students in their learning process facilitates the development of the technical and professional competencies they need as professionals. This article describes the organisation and impact of a mini-conference and project work – the creation of a software product and its introduction in the market – aimed at the development of professional competencies in general and writing skills in particular. The course was evaluated by assessing the students’ perception of the development of a number of professional competencies through a questionnaire completed by 125 students from two consecutive year groups. The results indicate that the project work and the mini-conference had a positive impact on students’ perceptions of the development of professional competencies.  相似文献   

Gender Differences in Lunar‐related Scientific and Mathematical Understandings     

Jennifer Wilhelm 《International Journal of Science Education》2013,35(15):2105-2122

This paper reports an examination on gender differences in lunar phases understanding of 123 students (70 females and 53 males). Middle‐level students interacted with the Moon through observations, sketching, journalling, two‐dimensional and three‐dimensional modelling, and classroom discussions. These lunar lessons were adapted from the Realistic Explorations in Astronomical Learning (REAL) curriculum. Students’ conceptual understandings were measured through analysis of pre‐test and post‐test results on a Lunar Phases Concept Inventory (LPCI) and a Geometric Spatial Assessment (GSA). The LPCI was used to assess conceptual learning of eight science and four mathematics domains. The GSA was used to assess learning of the same four mathematical domains; however, the GSA test items were not posed within a lunar context. Results showed both male and female groups to make significant gains in understanding on the overall LPCI test scores as well as significant gains on five of the eight science domains and on three of the four mathematics domains. The males scored significantly higher than the females on the science domain, phase—Sun/Earth/Moon positions, and on the mathematics domain geometric spatial visualisation. GSA results found both male and female groups achieving a significant increase in their test scores on the overall GSA. Females made significant gains on the GSA mathematics domains, periodic patterns and cardinal directions, while males made significant gains on only the periodic patterns domain. Findings suggest that both scientific and mathematical understandings can be significantly improved for both sexes through the use of spatially focused, inquiry‐oriented curriculum such as REAL.  相似文献   

A Study of How Classroom Dialogue Facilitates the Development of Geometric Spatial Concepts Related to Understanding the Cause of Moon Phases     

Sonya Ellouise Sherrod  Jennifer Wilhelm 《International Journal of Science Education》2013,35(7):873-894

Using data derived from interviews of small groups of secondary school science teachers, this paper offers insights into how they came to enter school teaching. Together with other data drawn from parallel interviews with another small group of secondary school history teachers in the same schools, conducted initially for comparative purposes, the paper suggests that, in both cases, the decision to teach is the outcome of a number of unpredictable and contingent factors, rather than a response to a sense of vocation or any initial long‐term commitment to the profession. The implications of these findings for theoretical approaches to understanding career choice and for teacher recruitment are briefly explored.  相似文献   

Developing a university course for online delivery based on learning objects: from ideals to compromises   总被引：1，自引：0，他引：1  

Pierre Wilhelm  Russ Wilde 《Open Learning》2013,28(1):65-81

A course instructor and his assistant at Athabasca University investigated whether the process of transferring interoperable learning objects from online repositories facilitated course production, both pedagogically and economically. They examined the efficiency of the objects‐assembly method from several perspectives while developing an online university course based on learning objects for this, one of Canada's leading online and distance education institutions. The two researchers examined issues that confronted them as they gathered, assessed, repaired, assembled and created learning objects. When their search for suitable objects appeared fruitless, they questioned assumptions made by theoreticians and visionaries about pedagogical and economic efficiencies associated with the objects‐assembly metaphor and production. They highlighted this metaphor's failure to guide their course design based on learning objects in a climate of uncertainty and explained the nature of the compromise that eventually compelled them to acquire a proprietary online delivery system.  相似文献   

Looking for the library: Using an undergraduate business syllabi analysis to inform an instruction program     

Jennifer Wilhelm  Alyson Vaaler 《Journal of Business & Finance Librarianship》2013,18(3-4):225-236

This study analyzed 260 syllabi representing a year of the undergraduate curriculum from a business school. The syllabi were examined based on the mentions of the library from across three categories: spaces, resources, and services, as well as possible opportunities for engagement that librarians could target for collaboration. In this study, the library was mentioned 79 times, mostly in relation to library resources. There were also 479 opportunities for engagement coded. This study found that the majority of undergraduate syllabi do not mention the library, but that there are considerable opportunities that librarians can target for future engagement.  相似文献   

Strengthening the visual element in visual media materials     

R. Dwight Wilhelm 《TechTrends》1996,41(3):24-25

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Thinking in Objects and their Collaboration: Introducing Object-Oriented Technology     

Carsten Schulte  Johannes Magenheim  Jörg Niere  Wilhelm Schäfer 《Computer Science Education》2013,23(4):269-288

Although many professionals in education believe that an ‘objects first’ approach is the best method of introducing object-oriented technology, there is no common agreement on how to start such courses. Current study programs often begin by teaching a chosen object-oriented programing language, where students are confronted by a large amount of syntactical detail. Instead of focusing on the basics of object-oriented technology, namely objects and their collaborations, difficulties in handling the details of the programing language lead to a very scattered knowledge of object-oriented concepts. This is dangerous, as learners are left with a set of unconnected knowledge fragments. Approaches which embed different knowledge fragments in an overall knowledge view are known as “cognitive apprenticeship” approaches. The main idea of cognitive apprenticeship is continuous practice. We present a learning environment for introducing object-oriented technology in upper secondary schools based on cognitive apprenticeship. We use a visual programing language to away from the details and provide tool support to aid practice. We present the learning sequencewhich is used and show the impacts it makes on the course structure in our experiment in the chosen object-oriented programming language The Joint Task Force on Computing Curricula IEEE Computer Society.  相似文献   

Anerkennungsdefizite und Vorurteile     

Möller  Renate  Heitmeyer  Wilhelm 《Zeitschrift für Erziehungswissenschaft》2004,7(4):497-517

Zeitschrift für Erziehungswissenschaft - Anerkennungstheoretische Überlegungen und Vorurteile gewinnen zunehmend an Bedeutung bei der Analyse und Erklärung problembehafteter...  相似文献   

Parallel assessment of nutrition and activity in athletes: validation against doubly labelled water, 24-h urea excretion, and indirect calorimetry     

Koehler K  Braun H  De Marees M  Fusch G  Fusch C  Mester J  Schaenzer W 《Journal of sports sciences》2010,28(13):1435-1449

The assessment of nutrition and activity in athletes requires accurate and precise methods. The aim of this study was to validate a protocol for parallel assessment of diet and exercise against doubly labelled water, 24-h urea excretion, and respiratory gas exchange. The participants were 14 male triathletes under normal training conditions. Energy intake and doubly labelled water were weakly associated with each other (r = 0.69, standard error of estimate [SEE] = 304 kcal x day(-1)). Protein intake was strongly correlated with 24-h urea (r = 0.89) but showed considerable individual variation (SEE = 0.34 g kg(-1) x day(-1)). Total energy expenditure based on recorded activities was highly correlated with doubly labelled water (r = 0.95, SEE = 195 kcal x day(-1)) but was proportionally biased. During running and cycling, estimated exercise energy expenditure was highly correlated with gas exchange (running: r = 0.89, SEE = 1.6 kcal x min(-1); cycling: r = 0.95, SEE = 1.4 kcal x min(-1)). High exercise energy expenditure was slightly underestimated during running. For nutrition data, variations appear too large for precise measurements in individual athletes, which is a common problem of dietary assessment methods. Despite the high correlations of total energy expenditure and exercise energy expenditure with reference methods, a correction for systematic errors is necessary for the valid estimation of energetic requirements in individual athletes.  相似文献