Using Extraction Experiment as a Tool for Teaching Scientific Process Skills

Laboratory work educates students about the ＂processes of science＂. But it is suggested that students＇ learning level is low because of limited application of science processes in their laboratory work. Extraction experiment was chosen as the topic since it allows students to apply many of their basic chemistry knowledge, and it can be readily to gain understanding of scientific proceses required for an investigation. This study has been carried out with 40 students who are in the first year of Science Teaching Division at Trakya University, Faculty of Education. These students were divided into two groups of the experimental group and the control group, each group containing 20 students. The students of the experimental group were given knowledge about basic scientific process skills, and a procedure in detail to follow was given. But the students of the control group was given a standard procedure. The students of both groups were asked about what and why they did while they were performing the laboratory investigation. We observed that the experimental group students used the basic process skills, understood the extraction experiment, and realized what and why they did from this activity better than the control group students. The control group students did not know why they did laboratory work and they tended to focus on completing the task rather than learning from it. We considered that the experience would be helpful for students to improve scientific process skills if the students successfully acquired procedural understanding. Students＂ scientific processskills will develop as long as they use the skills.     

Construction of nationhood through education in Malaya: revisiting the Barnes and Fenn-Wu Reports

This article provides an analysis of two colonial reports, the Barnes and the Fenn-Wu Reports on education in the British colony of Malaya. The popular stance on the Barnes and the Fenn-Wu Reports is that one is an effect or reply to the other. We argue on the contrary that the two reports construct a common argument on nation-building which becomes apparent through a dialogic reading of the reports. We show how the two reports, written in the 1950s, reflect the anxiety of the colonial rulers in constructing a nation and the ethnic communities (the Malays and the Chinese) in pre-independent Malaya. These communities were constructed not without their inherent antagonism as well as their reciprocal vulnerabilities in a future political state. This act of articulation is predominantly a political act constructed through a complex web of interdiscursivity and intertextuality. The spectres of the Barnes and the Fenn-Wu Reports continue to surface in education and nation-building discourse in modern-day Malaysia.     

Single-cell yolk-shell nanoencapsulation for long-term viability with size-dependent permeability and molecular recognition

Like nanomaterials, bacteria have been unknowingly used for centuries. They hold significant economic potential for fuel and medicinal compound production. Their full exploitation, however, is impeded by low biological activity and stability in industrial reactors. Though cellular encapsulation addresses these limitations, cell survival is usually compromised due to shell-to-cell contacts and low permeability. Here, we report ordered packing of silica nanocolloids with organized, uniform and tunable nanoporosities for single cyanobacterium nanoencapsulation using protamine as an electrostatic template. A space between the capsule shell and the cell is created by controlled internalization of protamine, resulting in a highly ordered porous shell-void-cell structure formation. These unique yolk-shell nanostructures provide long-term cell viability with superior photosynthetic activities and resistance in harsh environments. In addition, engineering the colloidal packing allows tunable shell-pore diameter for size-dependent permeability and introduction of new functionalities for specific molecular recognition. Our strategy could significantly enhance the activity and stability of cyanobacteria for various nanobiotechnological applications.     

A Preliminary Study on Investigation of Serum α-Synuclein and Tau Protein Levels in Children with Attention Deficit Hyperactivity Disorder

Neurodegenerative molecules play an important role in maintaining a supply for synaptic vesicles; and they are also likely to help regulate the dopamine release which is the primary mechanism of action in pharmacological treatments for attention deficit hyperactivity disorder (ADHD). It is suggested that there could be interactions between α-synuclein and tau in cytoskeletal disorganization and synaptic dystrophy. Therefore, we aim to determine the serum levels of neurodegenerative molecules such as α-synuclein and tau in children with ADHD. The study group consisted of 25 children, aged 6–10, diagnosed with ADHD according to DSM-IV criteria and who appeared at Dicle University, Faculty of Medicine, and Department of Child Psychiatry in Diyarbak?r, Turkey. 25 children, having no psychiatric disorders and medical illnesses, were selected as healthy control group. Serum α-synuclein and tau concentrations were determined by Enzyme-Linked Immuno Sorbent Assay. The α-synuclein levels of ADHD were not significantly different than those of controls. The tau levels of ADHD were found to be statistically significantly higher than those of controls. Moreover, α-synuclein levels showed a statistically significantly positive correlation with tau levels in children with ADHD. The results of our preliminary study can suggest that ADHD might possibly share a common disease mechanism with other diseases in terms of tau pathology. Increased serum tau level may be an indication of disturbance of microtubule transportation in the brains of children with ADHD.     

Changes in organisation of instep kicking as a function of wearing compression and textured materials

This study investigated effects of wearing compression garments and textured insoles on modes of movement organisation emerging during performance of lower limb interceptive actions in association football. Participants were six skilled (age?=?15.67?±?0.74 years) and six less-skilled (age?=?15.17?±?1.1 years) football players. All participants performed 20 instep kicks with maximum velocity in four randomly organised insoles and socks conditions, (a) Smooth Socks with Smooth Insoles (SSSI); (b) Smooth Socks with Textured Insoles (SSTI); (c) Compression Socks with Smooth Insoles (CSSI); and (d), Compression Socks with Textured Insoles (CSTI). Results showed that, when wearing textured and compression materials (CSSI condition), less-skilled participants displayed significantly greater hip extension and flexion towards the ball contact phase, indicating larger ranges of motion in the kicking limb than in other conditions. Less-skilled participants also demonstrated greater variability in knee–ankle intralimb (angle–angle plots) coordination modes in the CSTI condition. Findings suggested that use of textured and compression materials increased attunement to somatosensory information from lower limb movement, to regulate performance of dynamic interceptive actions like kicking, especially in less-skilled individuals.     

国际教育技术学专家对教育技术的认识与看法

对绝大多数人而言,教育技术似乎是一个令人迷惑,甚至难以理解的概念。教育技术学专家的理解将为从业人员认识教育技术领域提供一个多维的视角。本研究采用问卷调查法,对6个国家12所大学的71位教育技术学专家进行调查,旨在阐释专家对教育技术学的理解以及不同国家的专家对教育技术应用实践的不同认识。研究结果表明,教育技术的功能大多与教/学过程和学习资源有关,教育技术的相关问题在不同国家并无显著差异。     

The effect of using augmented reality and sensing technology to teach magnetism in high school physics

ABSTRACT

The purpose of this study is to investigate the effect of MagAR, an instructional material for teaching magnetism using augmented reality and sensing technology, on students’ academic achievement and learning process, and to identify students’ views about augmented reality. An embedded mixed-method approach was employed in this study. The study’s results suggest that AR learning environments are effective in teaching physics, and facilitate learning by adding visual and textual components to the learning process. In learning activities integrated with AR, the students were observed to participate more, appeared more comfortable, were able to answer questions related to the subject more easily, had increased self-confidence and exhibited higher academic achievement levels in physics. The results suggest that AR should not be considered as an independent learning environment for the teaching of physics, but would be more effective as supplementary to the laboratory environment.     

The relationship between critical thinking skills and in‐class questioning behaviours of English language teaching students

It is important that trainee teachers in the faculties of education should develop their critical thinking skills so that they can meet the expectations and needs of their profession. This study aimed at investigating the relationship between critical thinking skills and in‐class questioning behaviours of English Language Teaching (ELT) students at the Faculty of Education at Mugla University. The authors attempted to find out answers to the following questions: ‘What kinds of questions do students in lower and higher critical thinking groups ask?’ and ‘Is there a difference between the questions of students with higher and lower critical thinking scores?’ Three data collection instruments were used: Ennis‐Weir Critical Thinking Essay Test; a reading passage; and a structured interview. The findings obtained suggest that the questions asked by the students of the higher critical thinking score group are not questions that clarify unclear points, but questions asked out of curiosity, to remove the uncertainties, and to lead people to think profoundly. Moreover, these students ask questions to find alternatives, to think the reverse and to head for new ideas. The students in the higher score group experienced thinking processes more intensively than the lower score group.     

Differentiated Function of School in Socio-Culturally Disadvantaged Context: A Constructivist Grounded Theory Study from Turkey

This study analyses the functioning of a school as a social system in an atypical context with the purpose of generating propositions to tackle educational problems confronted by socially and economically disadvantaged groups attending these schools. Adopting the constructivist grounded theory, the analysis suggests that there is a kind of “vicious cycle” in the functioning of this atypical school, which adversely affects the school system. Breaking the vicious cycle involves five basic propositions: (1) making school a better place than students’ homes, (2) overcoming the enduring difficulties of working in an atypical school, (3) multiplying learning opportunities, (4) prompting parents to assume more responsibility, (5) locating leadership that makes a difference. These propositions clarify the significance of informal subsystems, school community and the wider environment along with their enabling and blocking effects on a disadvantaged school system. Parallel to other studies on disadvantaged schools, the study highlights the need to refine the orthodox view of the concept of formal education and school, as well as the role of school principal, teachers and parents affiliated with atypical schools.     

Culturally relevant/sustaining pedagogy in a diverse urban classroom: Challenges of pedagogy for Syrian refugee youths and teachers in Turkey

This study focused on whether and how teachers implemented the principles of culturally relevant and sustaining pedagogies and the challenges teachers faced while trying to implement these principles with Syrian students in Turkey. The study was built on the four components of pedagogies: academic achievement; cultural competencies; sociopolitical consciousness; and the sustainability of culture. Qualitative data were obtained through interviews and field notes with four teachers who had Syrian students in their classes and four Syrian students. Content analysis was used to examine the data. The findings revealed that both teachers and students had low expectations of academic achievement. Teachers conducted the teaching–learning process entirely according to the perspectives of students who were from the mainstream culture. Teachers tried to improve the cultural competencies and enhance their sociopolitical consciousness of the Syrian students; however, the attempts were limited and inadequate. Although teachers were aware of the importance of sustaining the Syrian culture, they did not know how to do so. The teachers did not have sufficient competencies or experiences to make revisions or to carry out an effective instructional process tailored to the needs of Syrian students because of an absence of skills and knowledge of multicultural education.