An Integrative Cultural Model to better situate marginalized science students in postsecondary science education     

Hagar Ibrahim Labouta  Jennifer Dawn Adams  David Thomas Cramb 《Cultural Studies of Science Education》2018,13(3):785-796

In this paper we reflect on the article “I am smart enough to study postsecondary science: a critical discourse analysis of latecomers’ identity construction in an online forum”, by Phoebe Jackson and Gale Seiler (Cult Stud Sci Educ.  https://doi.org/10.1007/s11422-017-9818-0). In their article, the authors did a significant amount of qualitative analysis of a discussion on an online forum by four latecomer students with past negative experiences in science education. The students used this online forum as an out-of-class resource to develop a cultural model based on their ability to ask questions together with solidarity as a new optimistic way to position themselves in science. In this forum, we continue by discussing the identity of marginalized science students in relation to resources available in postsecondary science classes. Recent findings on a successful case of a persistent marginalized science student in spite of prior struggles and failures are introduced. Building on their model and our results, we proposed a new cultural model, emphasizing interaction between inside and outside classroom resources which can further our understanding of the identity of marginalized science students. Exploring this cultural model could better explain drop-outs or engagement of marginalized science students to their study. We, then, used this model to reflect on both current traditional and effective teaching and learning practices truncating or re-enforcing relationships of marginalized students with the learning environment. In this way, we aim to further the discussion initiated by Jackson and Seiler and offer possible frameworks for future research on the interactions between marginalized students with past low achievements and other high and mid achieving students, as well as other interactions between resources inside and outside science postsecondary classrooms.  相似文献   

Kinematic and kinetic analysis of the goalkeeper’s diving save in football     

Rony Ibrahim  Vosse A de Boode  Gert S. Faber  Jaap H. van Dieën 《Journal of sports sciences》2019,37(3):313-321

Kinetics and full body kinematics were measured in ten elite goalkeepers diving to save high and low balls at both sides of the goal, aiming to investigate their starting position, linear and angular momentum, and legs' contribution to end-performance. Our results showed that goalkeepers adopted a starting position with a stance width of 33 ± 1% of leg length, knee flexion angle of 62 ± 18° and hip flexion angle of 63 ± 18°. The contralateral leg contributed more than the ipsilateral leg to COM velocity (p < 0.01), both for the horizontal (2.7 ± 0.1 m·s^?1 versus 1.2 ± 0.1 m·s^?1) and for the vertical component (3.1 ± 0.3 m·s^?1 versus 0.4 ± 0.2 m·s^?1). Peak horizontal and peak angular momenta were significantly larger (p < 0.01) for low dives than for high dives with a mean difference of 55 kg·m·s^?1 and 9 kg·m²·s^?1, respectively. In addition, peak vertical momentum was significantly larger (p < 0.01) for high dives with a mean difference between dive heights of 113 kg·m·s^?1. Coaches need to highlight horizontal lateral skills and exercises (e.g. sideward push-off, sideward jumps), with emphasis on pushing-off with the contralateral leg, when training and assessing goalkeeper’s physical performance.  相似文献   

Temperament and Preschool Children’s Peer Interactions     

Ibrahim H. Acar  Kathleen Moritz Rudasill  Victoria Molfese  Julia Torquati  Amanda Prokasky 《Early education and development》2013,24(4):479-495

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QUALITY OF THE TASKS IN THE NEW TURKISH ELEMENTARY MATHEMATICS TEXTBOOKS: THE CASE OF PROPORTIONAL REASONING     

Ibrahim Bayazit 《International Journal of Science and Mathematics Education》2013,11(3):651-682

This study examines new Turkish elementary school mathematics textbooks to provide perspectives on the quality of the tasks related to the proportion concept and the ways they are presented. Tasks were analysed for several dimensions with a particular focus on their level of cognitive demands (LCD). Tasks were distinguished in two groups in terms of LCD: lower-level demand and higher-level demand. The findings revealed that 75 % of the tasks were related to higher-level demand in that they requested a certain level of interpretation, required connecting knowledge and procedures related to each other, demanded responses with some explanation and reinforced students’ non-algorithmic thinking. Only 25 % of the tasks were related to a lower-level demand, and these tasks could be resolved by recalling and implementing rules, procedures and factual knowledge without reflecting upon the meaning behind them. Most of the tasks were presented in multiple representations and framed in non-mathematical contexts. All these task characteristics indicate that the new elementary school textbooks have the capacity to promote students’ proportional reasoning. The findings also inform the international community about crucial aspects of the curriculum reforms in Turkey and provide suggestions for teachers and textbook writers concerning the quality of the tasks and their selection and implementation in the classrooms.  相似文献   

What Do Students’ Explanations Look Like When They Use Second-Hand Data?     

Ibrahim Delen  Joseph Krajcik 《International Journal of Science Education》2013,35(12):1953-1973

Explanation studies underlined the importance of using evidence in support of claims. However, few studies have focused on students' use of others' data (second-hand data) in this process. In this study, students collected data from a local water source and then took all the data back to the classroom to create scientific explanations by using claim–evidence–reasoning model on a new mobile application. A middle school science teacher from a Midwest town participated with four sixth-grade classes. After collecting their own data from a local water source, students created explanations by analyzing the data they collected (first-hand data), and by analyzing existing data set collected by another school from another river (second-hand data). By analyzing the health of these two water sources, students created two scientific explanations. Students participating in this study created stronger explanations when analyzing the data they generated (first-hand data).  相似文献   

A comparative study of the effects of cultural differences on the adoption of mobile learning          下载免费PDF全文

Ibrahim Arpaci 《British journal of educational technology : journal of the Council for Educational Technology》2015,46(4):699-712

The objective of this paper is to understand the impact of cultural differences on mobile learning adoption through identifying key adoption characteristics in Canada and Turkey, which have markedly different cultural backgrounds. A multi‐group analysis was employed to test the hypothesised relationships based on the data collected by means of survey questionnaires from 190 and 163 undergraduate students in Turkey and Canada respectively. The results indicated that there is a strong relationship between culture and adoption behaviour, and there are major differences in patterns between the adoption behaviours of the two countries. Implications of these findings are discussed.  相似文献   

Parental satisfaction with programmes provided for children with learning difficulties in Oman     

Ibrahim Al-Qaryouti  Laila Al-Salmi  Amur Al-Aiasare  Amani Adul-Hadi 《British Journal of Special Education》2023,50(2):268-292

This study aimed to explore parental satisfaction with programmes provided for children with learning difficulties (LD) in Oman. A sample was collected from 299 parents who filled out an electronic self-reporting questionnaire during the second semester of 2021. The researchers designed a 19-item questionnaire that was distributed over two domains: 14 items on parent satisfaction and five items on parent co-operation. The results revealed that parents' overall satisfaction with the effectiveness of the LD programmes in which their children were enrolled was high. The results also indicated statistically significant differences among the mean scores on parents' satisfaction over the age variable groups, in favor of the younger group, followed by the middle group, and lastly the older group. There were also statistically significant differences among the mean scores on parents' satisfaction according to the province locations, in favor of the capital city of Oman, Muscat, and its peripheral provinces, followed by the western provinces, and lastly, the eastern provinces. The study recommends conducting similar studies to investigate the satisfaction of school principals, specialists, teachers and children with LD to determine the effectiveness of Oman's LD programmes.  相似文献   

Optimal control of a distributed parameter system with applications to beam vibrations using piezoelectric actuators     

Ismail Kucuk  Ibrahim Sadek  Yalcin Yilmaz 《Journal of The Franklin Institute》2014

This paper addresses the issue of the active vibration control of the transverse modes in a flexible elastic systems. The control is implemented by discrete sets of piezoelectric actuators that apply the optimal forces. The performance index is a time-dependent quadratic functional of state variables and their time derivatives, and control forces which are determined by minimizing the objective functional subject to a penalty term on the control functions. A combination of Galerkin and variational approaches are employed to determine the control forces in the time domain explicitly in terms of coupled amplitudes and velocities. The effectiveness of the proposed method is demonstrated by applying it to a physical problem controlled by piezoelectric patch actuators.  相似文献   

A new pedagogical design for geo-informatics courses using an e-training support system     

Ahmed Sharaf Eldin  Alaa H. ElNahry  Adel Elsayed  Rania Elsayed Ibrahim 《Education and Information Technologies》2014,19(2):451-467

The current study seeks to introduce a new pedagogical design for geo-informatics courses using an e-training support system. Laurillard’s conversational approach based on conceptual representation for both instructor and learner was used to form the framework. As the current study specifically interested in training as a special form for learning, so, we sought methods and strategies to integrate requirements of both company and employee into the design of training programs. Therefore, a competency perspective was adopted into the conversational framework to use learning design that leads to learning activities tightly related to the needs of the company and employee. The above framework has been developed with special consideration to the underpinning pedagogical principles and the needs of lifelong learning that continues after the training has been completed. The implementation of the developed framework needs a special computerized system, so an e-training support system (ETSS) was developed to realize the framework. ETSS is an open source and standard-based infrastructure to enable and foster competence development and exchange of learning activities and learning units. Although the domain of the current study focuses on geo-informatics, ETSS is applicable to any other domain. The developed framework through its ETSS implementation were evaluated in a typical training environment. The results indicated that the best method in training was the training with the developed system with 91.5 % in comparison with the traditional training method with 81.4 %.  相似文献   

Diffusion of News of the Shuttle Columbia Disaster: The Role of Emotional Responses and Motives for Interpersonal Communication     

Amal Ibrahim  Jiali Ye 《Communication Research Reports》2013,30(2):91-101

This study examined the role of emotion in the process of news diffusion following the Space Shuttle Columbia disaster. Respondents reported both sadness and anger, but sadness was the predominant emotional response. Early learners reported more sadness, but emotional response was unrelated to the initial source of the news. Regarding interpersonal news diffusion, individuals who reported more sadness were more likely to pass the news on to others and spent more time discussing the event. Anger was associated with contacting a greater number of people. Individuals who contacted more people and spent more time in discussion reported stronger emotional (but not informational) motives for talking with others, and were more likely to say that they felt better after interpersonal contact. Overall, the findings suggest that interpersonal news diffusion and discussion function, in part, as ways to cope with emotional responses to news coverage.  相似文献