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131.
132.
The impact of sequencing and prior knowledge on learning mathematics through spreadsheet applications 总被引:1,自引:0,他引:1
Tracey Clarke Paul Ayres John Sweller 《Educational technology research and development : ETR & D》2005,53(3):15-24
According to cognitive load theory, instruction needs to be designed in a manner that facilitates the acquisition of knowledge
in long-term memory while reducing unnecessary demands on working memory. When technology is used to deliver instruction,
the sequence in which students learn to use the technology and learn the relevant subject matter may have cognitive load implications,
and should interact with their prior knowledge levels. An experiment, using spreadsheets to assist studient learning of mathematics,
indicated that for studients with little knowledge of spreadsheets, sequential instruction on spreadsheets followed by mathematics
instruction was superior to a concurrent presentation. The reverse was found for studients with more knowledge of spreadsheets.
These results are explained in terms of cognitive load theory. 相似文献
133.
Fourth-year medical students were allocated randomly to either problem-based learning (PBL) or case-based learning (CBL) tutorials on the topic of eating disorders during their 6-week psychiatry attachment. All students were evaluated in terms of their tutorial performance and the factual knowledge they had acquired. In turn, students evaluated the performance of the tutors in both the PBL and the CBL process. No significant differences were found between the student groups with respect to their performance or acquired knowledge. Furthermore, there were no significant differences when comparing the PBL format with the CBL format with regard to group functioning or oral interaction between students. Finally, student ratings for tutor performance on feedback, group management skills and personal qualities showed no differences. Implications for education are discussed. 相似文献
134.
Yiing C. Yap Tracey C. Dickson Anna E. King Michael C. Breadmore Rosanne M. Guijt 《Biomicrofluidics》2014,8(4)
A new model for studying localised axonal stretch injury is presented, using a microfluidic device to selectively culture axons on a thin, flexible poly (dimethylsiloxane) membrane which can be deflected upward to stretch the axons. A very mild (0.5% strain) or mild stretch injury (5% strain) was applied to primary cortical neurons after 7 days growth in vitro. The extent of distal degeneration was quantified using the degenerative index (DI, the ratio of fragmented axon area to total axon area) of axons fixed at 24 h and 72 h post injury (PI), and immunolabelled for the axon specific, microtubule associated protein-tau. At 24 h PI following very mild injuries (0.5%), the majority of the axons remained intact and healthy with no significant difference in DI when compared to the control, but at 72 h PI, the DI increased significantly (DI = 0.11 ± 0.03). Remarkably, dendritic beading in the somal compartment was observed at 24 h PI, indicative of dying back degeneration. When the injury level was increased (5% stretch, mild injury), microtubule fragmentation along the injured axons was observed, with a significant increase in DI at 24 h PI (DI = 0.17 ± 0.02) and 72 h PI (DI = 0.18 ± 0.01), relative to uninjured axons. The responses observed for both mild and very mild injuries are similar to those observed in the in vivo models of traumatic brain injury, suggesting that this model can be used to study neuronal trauma and will provide new insights into the cellular and molecular alterations characterizing the neuronal response to discrete axonal injury. 相似文献
135.
Neil Gibson Ben Mahony Claire Tracey Samantha Fawkner Andrew Murray 《Journal of sports sciences》2015,33(11):1182-1188
This study investigated whether ischemic preconditioning (IPC) in a trained population affected repeated sprint performance. A secondary aim was to assess responses according to gender. Sixteen (nine females and seven males) well trained team sport athletes took part in a randomised crossover study design. Participants underwent an IPC and placebo treatment involving three periods of 5 min occlusion applied unilaterally (3 × 5 min occlusion to each leg) at either 220 mmHg or 50 mmHg. Each period of occlusion was followed by 5 min reperfusion. Following treatment 5 × 6 s maximal effort sprints were undertaken on a cycle ergometer against 7.5% body mass, each interspersed by 24 s recovery. Measured parameters included peak power, total power, percentage decrement, post-exercise blood lactate and ratings of perceived exertion. Nor within subject main effect for IPC was observed, neither was there an interaction effect with gender. Effect sizes were trivial (ES < 0.2) with the exception of a moderate (ES < 1.2) change in post-exercise blood lactate in the female cohort (1.6 ± 0.4 mmol?1 lower following IPC). Results suggest no benefit to team sport players in utilising IPC as a means of enhancing repeated sprint performance. A lower blood lactate response in female participants following IPC may suggest improved blood flow through vasodilation. 相似文献
136.
It is argued in this article that the human body both in health and disease cannot be fully understood without adequately accounting for the different levels of human variation. The article focuses on variation due to ancestry, arguing that the inclusion of information pertaining to ancestry in human anatomy teaching materials and courses should be carried out and implemented with care and in line with latest developments in biological anthropology and related sciences. This seems to be of particular importance in the education of health professionals, as recent research suggests that better knowledge of human variation can improve clinical skills. It is also argued that relatively small curricular changes relating to the teaching of human variation can produce significant educational gains. 相似文献
137.
Heilmann John Moyle Maura Sparrow Tracey Meurer John 《Early Childhood Education Journal》2022,50(7):1233-1245
Early Childhood Education Journal - A rich literature describes the efficacy of coaching programs for early care and education (ECE) teachers. ECE teachers can provide unique insights into the... 相似文献
138.
Izaak Rutenberg Louise Ainscough Kay Colthorpe Tracey Langfield 《Anatomical sciences education》2022,15(6):1018-1031
The transition from secondary to tertiary education can be challenging, as students must adapt to independent learning. For students in the allied health and nursing disciplines, this transition may coincide with compulsory first-year courses in anatomy, which are traditionally difficult to master. Students' agency—their capacity to make intentional choices to alter the path of their learning—may play a role in their successful completion of first-year anatomy courses. This study aimed to develop a measure for agency and to determine whether agency is associated with academic achievement. First-year students (n = 131) completed open-ended questions measuring each aspect of agency. Student responses were quantified using rubrics and then combined to create an overall agency score. Three factors of agency were determined: action, metacognition, and self-efficacy. Students with higher agency scores were significantly more likely to have higher academic achievement in anatomy compared to students with lower agency scores. The relationship between agency and academic achievement was strongest for action. These results suggest that encouraging students to be active participants in their learning may help them to achieve at university. 相似文献
139.
Marley W. Watkins Tracey E. Hall 《Journal of educational and psychological consultation》2014,24(4):283-306
In this article, we report on a multiyear consultation project between a consulting team based in the United States and the Ministry of Education in Trinidad and Tobago. The project was initiated with a request for training in counseling for secondary school students but ended with the training of personnel from the Ministry of Education in diagnosis and assessment at the elementary school level. Outcomes included manuals with national norms on phonemic awareness, oral reading fluency, and parent and teacher rating scales for the elementary-age students in Trinidad and Tobago and on a depression screener and an anxiety measure for secondary school students. Details on the consultation process are discussed as are lessons learned. 相似文献
140.
Tracey N. Sulak 《Educational studies》2018,44(3):279-294
A positive school climate impacts students by promoting positive relations among students, staff and faculty of the school. The current study used latent class analysis and multinomial regression with R3STEP to analyse patterns of negative behaviours in schools and test the association of these patterns with structural variables like school size, demographics, and location using data from the 2008 School Survey on Crime and Safety, (n = 2560). The results indicated five classes of frequencies of negative behaviours. By using the lowest frequency of behaviour class as a reference, the classes with the highest frequencies of bullying, teacher disrespect, and sexual assault were more likely to be found in high crime areas and have larger campuses serving over 1000 students. Implications include the need to serve subgroups of schools based on measurable variables and the need to educate future teachers, administrators, and school psychologists about school climate and positive behaviour support systems. 相似文献