Analysis of the Meanings of the Antiderivative Used by Students of the First Engineering Courses     

Luis R. Pino-Fan  Vicenç Font  Wilson Gordillo  Víctor Larios  Adriana Breda 《International Journal of Science and Mathematics Education》2018,16(6):1091-1113

In this article, we present the results of the administration of a questionnaire designed to evaluate the understanding that civil engineering students have of the antiderivative. The questionnaire was simultaneously administered to samples of Mexican and Colombian students. For the analysis of the answers, we used some theoretical and methodological notions provided by the theoretical model known as Onto-Semiotic Approach (OSA) to mathematical cognition and instruction. The results revealed the meanings of the antiderivative that are more predominantly used by civil engineering students. Also, the comparison between the mathematical activity of Mexican and Colombian students provides information that allows concluding that the meanings mobilized could be shared among their communities and are not particular of their classroom or university.  相似文献   

Tumor marker requests in a general teaching Turkish hospital     

Gülsen Yilmaz  Fatma Meriç Yilmaz  Mehmet Senes  Dogan Yucel 《Indian journal of clinical biochemistry : IJCB》2007,22(1):52-56

Serum tumor markers may be requested inappropriately by clinicians. In this retrospective study, we aimed to investigate the appropriateness of TM requests in our hospital. Patients in the study were identified from the TM requests for 3 months between June–August 2004, using the laboratory database. A total of 2249 patients (1351 men, 898 women) were included in the study and there were 6570 TM requests. The number of requests were 1050 (16%) for Carbohydrate Antigen 19-9, 993 (15.1%) for Cancer Antigen 125, 941 (14.3%) for Prostate Specific Antigen, 921 (14%) for free PSA, 925 (14.1%) for Cancer Antigen 15-3, 788 (12%) for Alphafetoprotein, 730 (11.1%) for Carcinoembryonic Antigen and 222 (3.4%) for AFP/Human Chorionic Gonadotrophin. Our findings support the idea that for the evidence-based use of TM requests the education of clinical staff is required. Clear clinical guidelines including recommendations about the appropriate use of TM can be useful for this education process. Careful audit studies are also useful to determine the impact of these guidelines on the practice of evidence-based laboratory medicine.  相似文献   

Social Inequalities in French Secondary Schools: from figures to theories     

Marie Duru‐Bellat 《British Journal of Sociology of Education》1996,17(3):341-350

In spite of the unified type of junior secondary school (the ‘college') implemented in France since 1975, significant social inequalities of school careers can be observed today. A specific longitudinal study sheds some light on the variety of mechanisms which generate these social inequalities. Difference in academic progress is one mechanism, but parents’ strategies are also important. Finally, another aspect of social inequality arises from the school attended, some schools being more selective at the streaming points, these ‘school effects’ being related to the social characteristics of the pupils of the catchment area. All these facts and figures have some relevance with regard to different sociological theories about social inequalities in school careers. They also bring into question the educational policies implemented in France over the last 15 years.  相似文献   

Analysis of the relation between academic procrastination, academic rational/irrational beliefs, time preferences to study for exams, and academic achievement: a structural model     

Murat Balkis  Erdinc Duru  Mustafa Bulus 《European Journal of Psychology of Education - EJPE》2013,28(3):825-839

The purpose of this study was to investigate the relations between academic rational/irrational beliefs, academic procrastination, and time preferences to study for exams and academic achievement by using the structural equation model. The sample consisted of 281 undergraduate students who filled in questionnaires at the 7-week-long summer course. Students responded to questionnaires assessing their levels of (a) academic procrastination, (b) academic rational/irrational beliefs, and (c) time preferences to study for exams and demographic information sheet. In general, the results showed that rational academic beliefs have a direct impact on academic procrastination and time preferences to study for exams. Academic rational beliefs also have an impact on academic achievement indirectly by mediation of academic procrastination and time preferences to study for exams. The results also showed that academic procrastination has an impact on academic achievement both directly and by mediation of time preferences to study for exams. This study suggested that there is a relation between academic procrastination and rational academic beliefs, which should be addressed further in counseling intervention. Knowledge about the role of irrational academic beliefs and their relations with academic procrastination may assist school/ college counselors to develop interventions for students that suffer from delaying behaviors that negatively affect academic success.  相似文献   

Procrastination,self-regulation failure,academic life satisfaction,and affective well-being: underregulation or misregulation form     

Murat Balkis  Erdinç Duru 《European Journal of Psychology of Education - EJPE》2016,31(3):439-459

The aim of this study was to examine the role of self-regulation failure in procrastination. In addition, it also aimed to investigate the effects of procrastination on affective well-being and academic life satisfaction. Three hundred and twenty-eight undergraduate students participated in the study. The most obvious finding emerging from this study is that the absence or lack of self-regulation skills, as an indicator of underregulation, plays a significant role in procrastination among college students. Whether procrastination is an underregulation or misregulation form of self-regulation failure, it has a negative impact on students’ affective well-being. The contribution and implications of these findings were discussed in detail.  相似文献   

Exploring prospective teachers’ noticing of students' understanding through micro-case videos     

Ulusoy  Fadime  Çakıroğlu  Erdinç 《Journal of Mathematics Teacher Education》2021,24(3):253-282

This paper explores the nature of prospective teachers’ noticing of students’ understanding as they analyze and discuss middle school students’ understandings of trapezoids in micro-case videos in the context of geometry. In this exploratory study, the data were obtained from eight prospective middle school mathematics teachers through individual video analysis, reflection papers, and group discussions. The results indicated that the use of purposeful micro-case video designs based on prospective teachers’ background knowledge of quadrilaterals allowed them to be productive in video analyses and discussions. In individual video analyses, prospective teachers attended to various mathematical elements to identify students’ responses but did not always use them to make interpretations of each student’s understanding of trapezoid. In the group discussions of the micro-case videos, in contrast, prospective teachers could provide alternative interpretations of students’ understanding by identifying links between the mathematical elements in students’ responses and the characteristics of students’ understandings. In the group discussions, they provided more detailed and specific instructional actions to support each student’s understanding of trapezoid than their individual video analyses. This study suggests practical implications for teacher education programs on how to use video cases (e.g., firstly, working individually and then having group discussions about the videos) to explore prospective teachers’ professional noticing skills. Considering prospective teachers’ background knowledge of related mathematical contents, this study can also inspire future studies on how to design effective videos about students’ mathematical understanding.

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