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1.
In this study, we consider the potential of multimedia cases as tools for teacher professional development. Specifically, we examined online and face-to-face discussions that occurred within groups composed of pre-service mathematics teachers, in-service mathematics teachers, mathematicians, and mathematics teacher educators. Discussions within these heterogeneous groups tended to focus on issues of classroom implementation of the tasks shown in the multimedia case. Secondary foci of discussion included task characteristics and appropriateness of tasks for engaging students in thinking about mathematical concepts and processes. Analysis of contributions to discussions across group member type revealed differences that suggest that the variety of backgrounds and experiences of group members can blend in ways that support rich and critical discussions of mathematics, teaching, and learning.  相似文献   
2.

Introduction:

Today, the pneumatic tube transport system (PTS) is used frequently because of its advantages related to timing and speed. However, the impact of various types of PTS on blood components is unknown. The aim of this study was to examine the influence of PTS on the quality of routine blood cell counts, erythrocyte sedimentation, and certain blood coagulation tests.

Materials and methods:

Paired blood samples were obtained from each of 45 human volunteers and evaluated by blood cell count, erythrocyte sedimentation, and several coagulation tests, including prothrombin time (PT) and activated partial thromboplastin time (aPTT). Blood samples were divided into 2 groups: Samples from group 1 were transported to the laboratory via the PTS, and samples from group 2 were transported to the laboratory manually. Both groups were evaluated immediately by the tests listed above.

Results:

The blood sample test results from groups 1 and 2 were evaluated and compared. No statistically significant differences were observed (P = 0.069–0.977).

Conclusion:

The PTS yielded no observable effects on blood cell counts, erythrocyte sedimentation, or PT and aPTT test results. We concluded that the PTS can be used to transport blood samples and yield reliable results for blood cell counts, erythrocyte sedimentation, and several coagulation tests.  相似文献   
3.
The purpose of this study is to describe the strategies used by a mother with a child with autism during games activities with peers to provide the child with social skills. The research method of this study is ‘a qualitative single‐subject case study’. The participants in this research are a mother and her 9‐year‐old child with autism, one brother and three typically developing peers. The research data were collected through field notes, interviews, audio and videotape recordings during natural interactions between the mother and her child. The strategies the mother used were analysed using video records during games activities in a natural park. The interactions of the mother with her child were examined in the context of a hide‐and‐seek game. Micro‐ethnographic‐analysis techniques were used in the analysis of the video records. According to the research data, it was found that the mother with a child with autism made extensive use of 13 different verbal strategies and seven different non‐verbal strategies. It was observed that the mother guided her child and the group during the hide‐and‐seek game, arranged the environment of the games, carried out routine activities both at the beginning and at the end of the games and arranged the games in accordance with the abilities and preferences of the child. These applications bear a resemblance to the model of integrated game groups. As a result, the data from the present research reveal that a mother having a child with autism acts as a guide during the games and uses verbal and non‐verbal interaction strategies in this guidance process and by doing so contributes to the process of participation in the games by the child with autism and in the child's social interaction with his peers.  相似文献   
4.
“Knowing and doing measurement” is a fundamental competency in real life since measuring attributes of objects in appropriate units and using measuring tools assist students to quantify and understand the world. For this reason, the study of measurement has a special place in every mathematics curriculum. Among the domains of measurement, length measurement is extremely important for students to understand basic ideas about measurement and to construct bases for more advance topics as area and volume measurement. However, research on students’ understanding of length measurement reveals serious difficulties varying from incorrect alignment with a ruler to confusion of perimeter with area. One of the reasons for students’ struggles in measurement is considered as weaknesses in the intended (written) curriculum. In this respect, this study was designed to investigate the content of length measurement in the Turkish mathematics curriculum (1st–fifth grade) in terms of its potential to support students’ understanding. For this purpose, the Turkish Mathematics Curriculum Guide was carefully analyzed by considering main components of the curriculum (e.g. learning objectives). In spite of some weaknesses, the length measurement content in the curriculum seems to provide meaningful opportunities for students to develop the concepts and skills involved in length measurement.  相似文献   
5.
This exploratory study examines the background characteristics, socio-cultural values and pedagogical beliefs that entering student teachers bring with them into the faculties of education and explores their possible implications for teacher education in the Turkish context. The study comprised 18,226 first-year student teachers from 51 faculties of education who participated in the study by responding to a three-section questionnaire developed by the research team. Their responses indicate that students entering education faculties typically come from families of lower-middle socio-economic status living in urban areas, tend to possess more traditional than secular-rational values and have not yet formed clear pedagogical beliefs.  相似文献   
6.
The literature shows an increase in blended learning implementations (N?=?74) at faculties of education in Turkey whereas pre-service and in-service teachers’ ICT competencies have been identified as one of the areas where they are in need of professional development. This systematic review was conducted to find out the impact of blended learning on academic achievement and attitudes at teacher education programs in Turkey. 21 articles and 10 theses complying with all pre-determined criteria (i.e., studies having quantitative research design or at least a quantitative aspect conducted at pre-service teacher education programs) included within the scope of this review. With regard to academic achievement, it was synthesized that majority of the studies confirmed its positive impact on attaining course outcomes. Likewise, blended learning environment was revealed to contribute pre-service teachers to develop positive attitudes towards the courses. It was also concluded that face-to-face aspect of the courses was favoured considerably as it enhanced social interaction between peers and teachers. Other benefits of blended learning were listed as providing various materials, receiving prompt feedback, and tracking progress. Slow internet access, connection failure and anxiety in some pre-service teachers on using ICT were reported as obstacles. Regarding the positive results of blended learning and the significance of ICT integration, pre-service teacher education curricula are suggested to be reconstructed by infusing ICT into entire program through blended learning rather than delivering isolated ICT courses which may thus serve for prospective teachers as catalysts to integrate the use of ICT in their own teaching.  相似文献   
7.
In this study, we aimed to determine the early cognitive and home environmental predictors of reading in Turkish-speaking children. A total of 362 children participated in the study. We monitored the children for 3 years and assessed the home environmental variables and cognitive skills in kindergarten, reading fluency at the end of the first grade, and reading comprehension at the end of the second grade. We found that home literacy environment and socioeconomic status predicted early literacy skills in kindergarten as they also predicted reading fluency and reading comprehension through early literacy in later years. In addition, we found that phonological awareness, letter knowledge, and rapid naming predicted reading fluency, while language and verbal working memory predicted reading comprehension. The results of the study showed us that it is important to consider reading and reading comprehension in Turkish-speaking children holistically, together with cognitive skills and home environmental variables.  相似文献   
8.
This study examined conflict resolution strategies (CRSs) resorted to by sixth, seventh, and eighth grade primary school pupils in Turkey and identified gender differences in the resolution strategies typically resorted to. In addition, the study aimed to find out what actual conflicts students asked assistance for from teachers and what strategies students thought teachers used in dealing with their conflicts. The data for this research were collected via a questionnaire involving mostly open-ended items. Results supported the notion that three main groups of strategies (problem-solving, avoiding and aggressive) typically get implemented in solving conflicts. Problem-solving strategies were observed to be most frequently employed by the participants. There was a significant gender difference in terms of the use of CRSs, in that girls were more likely to use problem-solving strategies than boys. The majority of the participants tended not to ask for assistance from teachers in resolving their conflicts. However, students from low SES schools were more likely to ask for teacher assistance than students from middle and high SES schools. The participants also stated that teachers typically used two main strategies in helping them resolve their conflicts: problem-solving and aggressive strategies.  相似文献   
9.

Introduction

Measurements of blood ethanol concentrations must be accurate and reliable. The most important factors affecting blood ethanol stability are temperature and storage time. In this study, we aimed to compare ethanol stability in plasma samples at -20 °C for the different storage periods.

Materials and methods

Blood samples were collected from intoxicated drivers (N = 80) and initial plasma ethanol concentrations were measured immediately. Plasma samples were then stored at -20 °C and re-assessed after 2, 3, 4, or 5 months of storage. Differences between the initial and stored ethanol concentrations in each group (N = 20) were analyzed using Wilcoxon matched-pairs test. The deviation from the initial concentration was calculated and compared with Clinical Laboratory Improvement Amendments (CLIA’88) Proficiency Testing Limits. Relationships between the initial concentrations and deviations from initial concentrations were analyzed by Spearman’s correlation analysis. For all statistical tests, differences with P values of less than 0.05 were considered statistically significant.

Results

Statistically significant differences were observed between the initial and poststorage ethanol concentrations in the overall sample group (P < 0.001). However, for the individual storage duration groups, analytically significant decreases were observed only for samples stored for 5 months, deviations from the initial concentrations exceeded the allowable total error (TEa). Ethanol decreases in the other groups did not exceed the TEa.

Conclusion

According to our results, plasma ethanol samples can be kept at -20 °C for up to 3-4 months until re-analysis. However, each laboratory should also establish its own work-flow rules and criterion for reliable ethanol measurement in forensic cases.Key words: preanalytical phase, ethanol, stability, storage temperature  相似文献   
10.
The purpose of this study is to identify student teachers' perceptions of classroom management and methods for dealing with misbehaviour. In‐depth interviews with nine student teachers at Çukurova University (ÇÜ) in Turkey have been conducted twice, prior to and at the end of their teaching practice. Instructional management, behaviour management, communication, and physical organization of classrooms are the main components of classroom management for student teachers. Student teachers usually tend to use preventive, positive and less intrusive methods, such as non‐verbal messages, warnings, and positive reinforcement involving students' instructional activities, to manage student behaviour. The results of the study reveal that although student teachers feel confident about starting a teaching career, they need improvement in understanding child psychology, in experiencing different teaching situations, and in becoming competent in contemporary teaching methods. Nonetheless, student teachers reported that their sense of efficacy increased from the beginning to the end of the course.  相似文献   
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