Turkish Students' Conceptions about the Simple Electric Circuits

In this study, the Turkish students' understanding level of electric circuits consisting of two bulbs and one battery was investigated by using open-ended questions. Two-hundred fifty students, whose ages range from 11 to 22, were chosen from five different groups at primary, secondary and university levels in Trabzon in Turkey. In analyzing students' drawings and explanations, both qualitative and quantitative methodologies were exploited. The unipolar model (Model A), the clashing currents model (Model B), the current consumed model (Model C) and the scientist model with current conserved (Model D) determined from the related literature were used to categorize the students' answers. The results showed that the Turkish students have many misconceptions about electric circuits. Also, it is found out that especially Model A was widespread accepted among the students in group 1 (5th grade) and half of the students in group 3 (9th grade) has an understanding of electric circuits as it is in Model C.     

Child protective services involvement and exclusionary school discipline

The study examined the impact of child protective services (CPS) contact on out-of-school suspensions for 49,918 Wisconsin students (followed from ages 5–6 to 14–15; [school years 2010–2019; 74% White; 7% Black; 11% Hispanic; 8% other; 49% female]). A quasi-experimental design comparing recent CPS contact to upcoming (future) CPS contact shows that both recent CPS contact without foster care and future CPS contact predict higher odds of suspension compared with no contact. Higher odds of suspension emerged prior to CPS contact and did not substantially increase during or after CPS contact, suggesting that system-induced stress is not a primary driver of behavioral problems leading to suspension. Foster care reduced the odds of suspension among White children and children in special education.     

The implementation of a new policy on teacher appraisal in Portugal: how do teachers experience it at school?

This paper draws upon a broader piece of research aimed at investigating the implementation process of a recent policy on teacher appraisal in Portugal. Two case studies were carried out and a combination of methods for data collection was used. Findings suggest that teachers?? perceptions are marked by uncertainty and scepticism. Amongst the most critical issues are the lack of recognition of the appraisers, the bureaucratic and summative dimension, and the lack of necessary conditions to put it into practice. However, some positive aspects were also identified, namely the emergence of debates within the teaching profession, the opportunity to reflect upon teachers?? practice and to change previous teacher appraisal system.     

Assessing key epistemic features of didactic-mathematical knowledge of prospective teachers: the case of the derivative

In recent years, there has been a growing interest in studying the knowledge that mathematics teachers require in order for their teaching to be effective. However, only a few studies have focused on the design and application of instruments that are capable of exploring different aspects of teachers’ didactic-mathematical knowledge about specific topics. This article reports the results obtained following the application of a questionnaire designed specifically to assess certain key features of prospective, higher secondary-education teachers’ knowledge of the derivative. The questionnaire was constructed using a theoretical model of mathematical knowledge for teaching based on the onto-semiotic approach to mathematical knowledge.     

Curricular change in Turkey: Time,sequentiality, and differential power of actors in establishing a new knowledge path

This paper introduces the knowledge path concept to research on curriculum change. Vis-à-vis existing inquiries into curriculum making, the paper explores the usefulness of the knowledge path concept in an empirical analysis of curriculum change that primary education in Turkey underwent at the turn of the century. Based on the documentary interpretation of expert interviews and other material, the paper enquires into the processes that instigated and enabled the curriculum change and rendered it durable. This concept may contribute to four previously identified research approaches to curriculum change: empirical case studies, ideology-critical and New Institutionalist inquiries, and a focus on organizational politics. It emphasizes the significance of time and sequentiality during change processes and underpins the differentiated power of actors.     

A Review of Solution Chemistry Studies: Insights into Students’ Conceptions

This study has reviewed the last two decades of student conception research in solution chemistry pertaining to aims, methods of exploring students conception, general knowledge claims, students conceptions and difficulties, and conceptual change studies. The aims of solution chemistry studies have been to assess students understanding level of solution chemistry and in some studies compare understanding based on age and year at school or college. The methods of exploring students conceptions consisted of interviews, paper and pencil surveys (open-ended questions and multiple-choice questions), free writing and drawings and the validity of these methods have been highlighted. The general knowledge claims synthesized in this study are students (a) attending to mechanical events, (b) preference for everyday language usage over chemical language, (c) confusing solution chemistry with non-related concepts, (d) lack of sub-microscopic explanation for macroscopic observation, (e) difficulty with visualizing and representing sub-microscopic ideas, (f) difficulty with symbolic representations, (g) inconsistent explanations, (h) development of student understanding with age, and (i) development of conservation reasoning with age. To incorporate students conceptions, conceptual change studies have used strategies such as worksheet, analogy, collaboratively working with a teacher, hypermedia, and group exploration. The results of conceptual change studies generally have had a positive impact enabling students to consider their ideas and develop plausible models of solution chemistry. For improvement of student learning in chemistry, this review of solution chemistry studies sheds light on teacher thinking and capacity building with respect to explicitly incorporating students conceptions into chemistry curriculum; practicing research-based strategies; forging links among types of chemical knowledge; collaborating for experimental teaching; and conducting further research.     

网上调查浅谈

网上调查是未来调查研究的发展方向和趋势.与传统调查方式相比,它具有自愿性、定向性、互动性、经济性、及时性、匿名性等特征.《档案界》网站开通后,《档案管理》杂志已经具备开展网上调查的基本条件.通过对网上调查的特点和优势、《档案管理》杂志开展网上调查的可行性以及网上调查的局限性进行分析,对《档案界》开展网上调查有关问题进行了思考.     

Creating the Civil Society East and West: Relationality,responsibility and the education of the humane person

Abstract

A recurring theme in many places concerns the nurturing and maintenance of a civil society that is committed to justice, to human fulfilment and a community that actively pursues the good of all its members. The creation of a civil society where there is respect for persons and a concern for the good of others is an important social aim and though it is not the sole responsibility of educational institutions, they have a crucial role to play in its development. It also evident that the creation of a civil society includes the family and the wider community and so in order to understand how a civil society is to be fostered, we need to understand relationality, a central concept in both the Western and Eastern understandings of human nature. If we reflect on contemporary education in both the East and the West, an important question to consider is the extent to which education measures up to developing in young people a sense of their responsibilities to one another, their families and to the wider community. In short the question of how well we are developing humane persons who are able to relate to one another and build a civil society. This article argues that there needs to be a rebalancing of the aims of education to include the development of those values and dispositions that will foster a civil society.     

Metaphors in mathematics classrooms: analyzing the dynamic process of teaching and learning of graph functions

This article presents an analysis of a phenomenon that was observed within the dynamic processes of teaching and learning to read and elaborate Cartesian graphs for functions at high-school level. Two questions were considered during this investigation: What types of metaphors does the teacher use to explain the graphic representation of functions at high-school level? Is the teacher aware of the use he/she has made of metaphors in his/her speech, and to what extent does he/she monitor them? The theoretical framework was based on embodied cognition theory. Our findings include teachers’ expressions that suggest, among other ideas: (1) orientation metaphors, such as “the abscissa axis is horizontal”; (2) fictive motion, such as “the graph of a function can be considered as the trace of a point that moves over the graph”; (3) ontological metaphors; and (4) interaction of metaphors. We also show that teachers were not aware of using metaphors.