首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 850 毫秒
1.
Abstract

Individuals display a mathematics disability when their performance on standardized calculation tests or on numerical reasoning tasks is comparatively low, given their age, education and intellectual reasoning ability. Low performance due to cerebral trauma Is called acquired dyscalculia. Mathematical learning difficulties with similar features but without evidence of cerebral trauma are referred to as developmental dyscalculia. This review identifies types of developmental dyscalculia, the neuropsychological processes that are linked with them and procedures for Identifying dyscalculia.  相似文献   

2.
In four carefully selected samples of 8- to 10-year old children with dyslexia (but age adequate arithmetic skills), dyscalculia (but age adequate reading skills), dyslexia/dyscalculia and controls a domain-general deficit in rapid automatized naming (RAN) was found for both dyslexia groups. Dyscalculic children exhibited a domain-specific deficit in rapid naming of quantities. This finding is in line with recent assumptions that dyscalculia is associated with a neurobiological deficit in the processing of numerosities. In the dyslexia/dyscalculia group, RAN deficits were additive, that is, the dyslexia/dyscalculia group exhibited the sum of the deficits found in the dyslexia only and dyscalculia only groups. This finding suggests that the cognitive bases of dyslexia and dyscalculia are independent from each other. Within the naming speed paradigm no differential impact of special demands on the executive functions inhibition and shifting was found for any of the four groups.  相似文献   

3.
发展性计算障碍是一种阻碍儿童算术能力获得的特殊学习障碍。它有多种不同的类型,目前主要有3种分类标准。发展性计算障碍类型的多样性主要在于其成因的复杂性。文章从遗传、脑机制、个体认知因素及环境与教育因素4个方面,系统地总结了发展性计算障碍的成因,最后指出现有研究存在的问题以及今后研究的重点。  相似文献   

4.
发展性计算障碍研究及数学教育对策   总被引:1,自引:0,他引:1  
发展性计算障碍是一种阻碍儿童算术能力获得的特殊学习障碍,它对儿童正常发展及其日常生活带来消极影响。在对发展性计算障碍的概念、种类、特征以及流行性加以介绍的基础上,分析了发展性计算障碍形成的遗传机制、大脑机制、认知因素以及环境、教育与个体情绪因素,并提出了相应的数学教育对策。  相似文献   

5.
发展性计算障碍研究述评   总被引:1,自引:0,他引:1  
发展性计算障碍研究越来越受到研究者的关注,已有研究发展性计算障碍的诊断、病因及其与工作记忆之间的关系等方面取得了丰硕的成果.但是,已有研究在被试的同质性、被试的代表性、控制组的设置问题以及数字加工和计算能力的测量等问题上还存在着一定的问题,需要进一步改进.  相似文献   

6.
This article examines working memory functioning in children with specific developmental disorders of scholastic skills as defined by ICD-10. Ninety-seven second to fourth graders with a minimum IQ of 80 are compared using a 2 x 2 factorial (dyscalculia vs. no dyscalculia; dyslexia vs. no dyslexia) design. An extensive test battery assesses the three subcomponents of working memory described by Baddeley (1986): phonological loop, visual-spatial sketchpad, and central executive. Children with dyscalculia show deficits in visual-spatial memory; children with dyslexia show deficits in phonological and central executive functioning. When controlling for the influence of the phonological loop on the performance of the central executive, however, the effect is no longer significant. Although children with both reading and arithmetic disorders are consistently outperformed by all other groups, there is no significant interaction between the factors dyscalculia and dyslexia.  相似文献   

7.
发展性计算障碍的诊断与矫治   总被引:5,自引:3,他引:5  
发展性计算障碍的发生率大约为 5 % - 6% ,有些国家甚至更高。患有发展性计算障碍的儿童在学习、生活和以后的工作中都会遇到很多的困难 ,关于发展性计算障碍的研究应该引起人们的重视。本文从诊断、矫治两个方面对已有研究进行了综述。发展性计算障碍的诊断是进行此类研究需要首先解决的问题 ,矫正障碍则是这方面研究的最终目的 ,本文对发展性计算障碍的矫正进行了初步探讨。  相似文献   

8.
Developmental dyscalculia is a specific learning disability that is described as a heterogeneous and persistent cognitive disorder. Given the need to detect and intervene as early as possible to minimise its effects, teachers’ knowledge about symptoms, characteristics and effective intervention strategies in dyscalculia is essential. Given the lack of research about this topic and measures to evaluate teachers’ knowledge, this study aims to present a literature-based measure to evaluate knowledge about developmental dyscalculia and to investigate the predictors of this type of knowledge. Data were collected from a sample of 175 primary school teachers. The measure presented adequate psychometric properties. Teachers’ personal characteristics such as age and gender did not predict their knowledge about dyscalculia. Being a Special Education teacher predicted a higher knowledge of intervention strategies in dyscalculia and having heard about dyscalculia predicted higher knowledge about not only intervention strategies but also dyscalculia characteristics. The data are discussed, and suggestions for further studies are presented.  相似文献   

9.
This article aims to explore the symptoms and characteristics of dyscalculia. This is a qualitative study. Five experts in the field of special education took part in a focus group interview. Each expert had more than ten years of experience in their area of expertise. To determine the content validity of the protocol, three experts in special education, language and qualitative research evaluated each of the eight items. Cohen's kappa analysis was used to assess inter-rater reliability. The findings of this study indicate that 59 items have been developed, based on six constructs in the dyscalculia checklist. The six constructs were subitising, estimating, Arabic numerals, verbal numbers, arithmetic facts and calculating processes. Following the focus group interview, a new construct emerged: math anxiety. The study implies that teachers might utilise this checklist to carry out early detection of students with dyscalculia in primary schools. This will enable appropriate intervention, resulting in significant benefits for the Ministry of Education, for educators and teachers, and for the students themselves. Although this study was based in Malaysia, the results have wider implications because dyscalculia is present everywhere.  相似文献   

10.
Volume 60(3) of the Scandanavian Journal of Educational Research is a special issue on current trends in the phenomenography and variation theory research tradition. In the introduction to the special issue, Rovio-Johansson and Ingerman look towards the potential theoretical and methodological future of phenomenography and pose two questions: “Is phenomenography complete and finalised with no further development necessary?” and “Is phenomenography relatively insignificant in the future development of the tradition as it has been transcended by variation theory?” The aim of this paper is to address these two questions, and in the process elaborate the relationship between phenomenography and variation theory in educational research.  相似文献   

11.
有关发展性计算障碍儿童大脑神经机制的研究是近些年才逐渐发展起来的.研究发现,发展性计算障碍与脑结构功能失调有关,主要表现在顶叶和额叶上.但从整体上看,发展性计算障碍儿童加工过程中的神经机制和正常儿童是类似的,只是皮层的激活程度要弱一些;为了弥补加工困难,有些皮层会表现出补偿性机制,如角回、前扣带皮层等;一些皮层的作用还...  相似文献   

12.
The acquisition of numerical competency is regarded as imperative for quality of life and economic well-being. Many children have significant mathematical learning difficulties known as dyscalculia. The aim of this research was to systematically review the available literature for interventions with children presenting with dyscalculia in primary schools, in order to provide an evidence base of filtered information assessed for methodological rigour and coherence. The study evaluated literature from 2004 to 2014 that reported on interventions for primary school children presenting with dyscalculia. Specific databases were accessed to highlight literature for inclusion in the study. The studies were assessed at title, abstract and full text levels for quality based on the inclusion and exclusion criteria. The findings provide a base of effective interventions that can be used in the school setting for individual development with a holistic focus and present various methods of instruction for children presenting with dyscalculia.  相似文献   

13.
发展性计算障碍是儿童认知发展过程中较常发生的一类特异性障碍,对学生的学习和心理行为发展均有重要影响。依据认知模块化的观点,发展性计算障碍可以分为不同类型,目前主要有按阶段与按表征两种分法。近年来,有关研究在脑与认知科学领域取得较大进展,有关结果表明发展性计算障碍不仅与脑的单侧化有关,同时也与特定脑区在代谢与结构上的异常有关。目前在我国,研究者与广大教育实践工作者尚未对此引起足够的重视,有关研究尚未充分开展,为此,我国应加快在该方面的科学研究、干预与教育培养工作。  相似文献   

14.
全球化对中国教育改革的冲击   总被引:2,自引:0,他引:2  
全球化对教育的影响是深远及多方面的。本文旨在探讨全球化如何影响着中国教育改革的发展。首先,作者阐释什么是全球化及全球化如何影响着教育改革的理念。本文亦探讨中国在应对全球化挑战时如何重建高等教育及基础教育。全球化对教育来说究竟是不是一件“好事”?该议题目前为止还没有定论。只要全球化对教育的影响仍在,关于这一议题的争论就不会停止,还有待更多的教育研究来引证。 关键词:全球化;教育改革;高等教育;基础教育  相似文献   

15.
ABSTRACT

The aim of this study is to enable teachers to evaluate the crisis management skills of the administrators in terms of school development. The study has been carried out on a sample group consisting of 376 teachers (sample) working in 10 secondary schools and high schools. The study is a survey research based on the use of a quantitative method. In this survey, the scale of “the evaluation of the crisis management skills of the school administrators by teachers in terms of school development (OGAÖTDÖ)” developed by Tokel has been used. In addition, it has been analysed with the independent ANOVA test to determine whether or not it differs according to the factor of professional branches. When the research findings are examined, it has been determined that teachers answer positively to the question directed about crisis management skills of school administrators (X ? = 3.52) on disability services. As a result, it has been concluded that school administrators have adequate crisis management skills and they need a reputation for the quality.  相似文献   

16.
The dominance of the human capital approach in vocational skills development has been increasingly questioned for being de-humanised and de-contextualised. Contrary to this trend, the discourse in health professional skills development has shown increasing enthusiasm for consolidating this existing paradigm. To debate whether professional skills development should indeed be insulated from such scepticism, this paper examines one strategy adopted by the health professions. Called ‘task shifting’, this strategy involves re-delegating professional tasks to nonprofessional cadres according to a skills-based toolkit. Challenging the context-free approach to using this toolkit, this paper presents ethnographic evidence derived from a case study of pharmacy workforce issues in Malawi. It was found that task shifting was inhibited by a perception barrier about the moral and intellectual superiority of the pharmacists. Pharmacy technicians were judged to be unfit for a professional task because of a perceived lack of professional status, power and ethics. On tracing the origin of the inherent professional prowess assigned to the pharmacists, it was found that professionalism was an ideology borrowed from external sources, inter alia, colonial legacies and global health governance. This study exposes our hidden assumption about an axiomatic transferability of Anglo-American skills development models to a postcolonial, aid-dependent context. This paper therefore suggests redefining this toolkit by bridging health research into dialogue with non-health disciplinary concerns such as postcolonialism and aid-dependence. In conclusion, it argues that professional skills development is context-laden; and in need of a human-centred approach that involves true indigenous participation–challenges not unlike those faced by the vocational skills discourse.  相似文献   

17.
The preliminary results of this study suggested that children with developmental dyscalculia benefit from a numeracy intervention program that focuses on basic numerical knowledge and conceptual knowledge. All children in the experimental group showed considerable and partly significant performance increases on all calculation components. Six children with developmental dyscalculia were trained individually and in small-group settings for a relatively short duration (one school semester). We argue that the positive intervention effects to a large extent are attributable to the explicit teaching of numerical domains that often have been found to be neglected in school mathematics.  相似文献   

18.
This paper interrogates the drivers and meanings behind the dramatic rise of technical and vocational education and training in the policy and political agenda of India. What are the assumptions about the existing traditions and character of India's culture or cultures of skills development? Is the massive planned expansion of skilled people in India simply more of the same, or is there a new paradigm involved? How central will be the role of the private sector and of public private partnerships in the new skills training environment? And how inevitable was it that India should embrace a national vocational qualification framework?  相似文献   

19.
ADHD and dyscalculia: Evidence for independent familial transmission   总被引:2,自引:0,他引:2  
The familial relationship between dyscalculia and attention-deficit/hyperactivity disorder (ADHD) was assessed. We conducted a familial risk analysis using probands with and without ADHD of both genders and their first-degree relatives. Participants were assessed with structured diagnostic interviews and a cognitive test battery. We found elevated rates of ADHD in relatives of both ADHD proband groups, regardless of dyscalculia status, and elevated rates of dyscalculia in relatives of probands with dyscalculia, irrespective of ADHD status. There was no evidence for cosegregation or assortative mating. Our findings support the hypothesis that ADHD and dyscalculia are independently transmitted in families and are etiologically distinct. These results reinforce the current nosological approach to these disorders and underscore the need for separate identification and treatment strategies for children with both conditions.  相似文献   

20.
The new Dutch curriculum for the upper levels of secondary education requires students to use research skills. Students have to conduct a number of small research projects, culminating in the writing of a research paper as a formal part of the new examinations. Although the literature offers abundant advice on how to write a good research paper, comparatively little research seems to have been done on this subject as it relates to the classroom. This article describes some results of a study which examines the problems encountered by students when carrying out research projects and which looks into the difficulties teachers face when coaching students in research skills. These obstacles are particularly apparent in the initial stages of the research process. Problem finding is revealed to be an underdeveloped skill in education. Although teachers score much better than students on a test of research skills, finding an effective way to channel these superior skills into coaching methods that benefit students remains problematic. It is evident that procedural knowledge cannot be seen separately from declarative knowledge. Working together in interdisciplinary teams might help teachers overcome some of these problems.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号