Investigating Consistency of Questions in Primary and Middle School Science Textbooks with Objectives in Science Curriculum

Due to problems related their content and use; textbooks do not achieve the expected effect in learning although they are one of the most important elements of the science curriculum. Questions in textbooks are also important criteria in determining the effect of textbooks. In this study, it was aimed to compare questions in four different science textbooks, both qualitatively and quantitatively in terms of objectives of curriculum. 2677 questions retrieved from primary school 3rd and middle school 5th and 6th grades textbooks were investigated comparatively in terms of their ratio across objectives in the curriculum, cognitive levels and types. According to the analysis, it was determined that there were differences between distributions of questions in the same and different grade level textbooks. It was also found that questions related to the objectives regarding input and processing skills were more than questions related to the objectives of output skills. Besides, it was observed that most of the questions in textbooks were aligned with traditional assessment and evaluation tools, and the ratio of the alternative type tools was found to be lower than the ratio of four different textbooks

Öğretmenlerin fen ve teknoloji dersinde ölçme ve değerlendirme uygulamalarına yönelik algıları

Çalışmanın amacı, ilköğretim 4. ve 5. sınıflarda fen ve teknoloji derslerini yürüten öğretmenlerin ölçme ve ve değerlendirme uygulamalarına yönelik algılarını farklı değişkenlere göre karşılaştırmaktır. Nicel araştırma metodolojisine göre yapılan çalışmada, survey yöntemi kullanılmıştır. Veriler, Zonguldak ili Karadeniz Ereğli ilçesinde görev yapan 175 öğretmenden toplanmıştır. Araştırmacı tarafından geliştirilen ölçme aracında, iki alt boyuttan oluşan 18 önerme yer almaktadır. Araştırma sonuçları, öğretmenlerin fen ve teknoloji derslerinde geleneksel ölçme ve değerlendirme yöntem ve araçlarını daha fazla kullandıklarını göstermektedir. Ayrıca öğretmenlerin kullandıkları yöntem ve araçların nitelik ve amaçlarına yönelik algıları; cinsiyet, kıdem ve hizmet-içi kursa katılmalarına göre anlamlı farklılık göstermezken, kendilerini yeterli görmelerinin farklılığa neden olduğu belirlenmiştir. Ölçme ve değerlendirme konusunda kendilerini yeterli gören öğretmenlerin birinci kademe fen ve teknoloji derslerinde daha etkili uygulamalar yaptıklarını düşündükleri tespit edilmiştir.The aim of this study was to compare according to different variables teachers’ perceptions about their measurement and evaluation practices in science and technology course in fourth and fifth grade of elementary school. In this study which was carried out according to the quantitative research methodology, the survey method was applied. The study data was gathered from 175 elementary teachers who taught at Karadeniz Ereğli, Zonguldak. To obtain data, perception of measurement and evaluation practices developed by the researcher were used. The tool had two sub-factor including 18 statements. The results of the study indicated that teachers tended to prefer traditional measurement and evaluation practices in science and technology courses. On the other hand, while there was no statistically significant difference in teachers’ perceptions of the quality and purposes of the methods and the tools they use on in terms of gender, experience degree and participation in inservice courses, whereas their consideration of self-efficacy led to statistically significant differences. It was found that teachers who considered themselves self-efficient in terms of measurement and evaluation had higher levels of perception towards science and technology courses taught in the first level of elementary education

STEM eğitiminin fen bilimleri dersinde akademik başarı üzerine etkisi: bir meta-analiz çalışması

In this study, a meta-analysis was conducted to find out the effect level of STEM education on students’ academic achievement in science courses. Scientific studies which were conducted and published in Turkey between January, 2018 and March, 2020 were reviewed in the study. As a result of literature review, 54 studies which were suitable for the purpose of the study were reached. In analyses conducted with Comprehensive Meta-Analysis program, effect levels were compared in terms of subject area and number of participants in addition to approaches/method used. According to the results of this study, it was concluded that STEM education was more effective in increasing students’ achievement in science courses when compared with teacher-centred teaching methods. According to the results examined according to other variables discussed in the study, significant difference was found in terms of the year in which the study was conducted, the researcher’s job, application period of the study and the number of participants. According to the results of the examined variables, the largest effect size was found in the field of biology, at high school level, doctoral publications, in researchers who were teachers, with 81+ participants and in studies conducted in 2019.Bu araştırmada, STEM eğitiminin öğrencilerin fen derslerindeki akademik başarıları üzerindeki etki düzeyini ortaya çıkarmak için bir meta-analiz yapılmıştır. Çalışmada Ocak 2018 - Mart 2020 tarihleri arasında Türkiye'de yürütülen ve yayınlanan bilimsel çalışmalar gözden geçirildi. Literatür taraması sonucunda araştırmanın amacına uygun 54 çalışmaya ulaşılmıştır. Bir istatistik analiz programı ile yapılan analizlerde, etki düzeyleri, kullanılan yaklaşımlar / yöntemin yanı sıra konu alanı ve katılımcı sayısı açısından karşılaştırılmıştır. Bu araştırmanın sonuçlarına göre, öğretmen merkezli öğretim yöntemlerine göre STEM eğitiminin öğrencilerin fen derslerinde başarılarını artırmada daha etkili olduğu sonucuna varılmıştır. Araştırmada ele alınan diğer değişkenlerin sonuçlara göre çalışmanın yapıldığı yıl, çalışmayı yapan kişilerin görevleri, çalışmanın uygulama süresi ve katılımcı sayısı açısından anlamlı farklılık bulunmuştur. İncelenen değişkenlerin sonuçlarına göre en büyük etki büyüklükleri biyoloji alanında, lise düzeyinde, doktora yayınlarında, öğretmen olan araştırmacılarda, 81 ve üzeri katılımcıyla, 2019 yılında yapılan çalışmalarda bulunmuştur

The relation between intellectual risk-taking regarding science classes and test anxiety inventory of secondary school

In learning of students, cognitive and affective skills and interaction of these skills are very significant. Intellectual risk taking (IRT) and test anxiety inventory (TAI) fall between these cognitive and affective skills. In this research, in addition to the relation between the skills of secondary school students, whether their class level and science success (SS) have any affect receives scrutiny. The research data has been obtained from 591 students, studying in 12 different government schools in 5 different provinces of Central Blacksea Region of Turkey. Three different data collection tools were used in this research conducted with the cross-sectional method. The correlation analysis results show that there is a negative relation between success in science and TAI, whereas there is a low relation between TAI and IRT. MANOVA results have revealed that as class level gets higher, IRT decreases and TAI does not have a significant tendency. It has been found that as the academic success of students gets higher, their TAI decreases and their IRT points do not have a specific tendency.Keywords: intellectual risk taking; science class; science success; test anxiet

Beden eğitimi ve spor eğitimi veren yükseköğretim kurumları ve istihdam durumlarına yönelik öğrenci algılamaları

This study was conducted among the students of higher education institutions providing Physical Education and Sports (PES) education. The study looks at the students’ perceptions of employment opportunities in their field. 746 students from the Schools of Physical Education and Sports located in different regions participated in the study. The students’ perceptions of employment opportunities were assessed using three items designed in the form of five-point Likert scale (Strongly disagree, Disagree, Undecided, Agree, Strongly agree). Arithmetic means and standard deviations of the responses were calculated, and One-Way ANOVA was conducted to find differences between groups, and Turkey test was used to find the source of the differences. At the end of the study; it was found that there is disproportion between the number of the students enrolling in the Schools of Physical Education and Sports and employment opportunities present for their graduates and employment opportunities in public and private organizations are limited.Bu araştırma, Beden Eğitimi ve Spor (BES) eğitimi veren yükseköğretim kurumlarında bulunan öğrencilerin alanları ile ilgili istihdam durumlarına yönelik algılamalarının incelenmesi amacıyla yapılmıştır. Araştırmaya farklı bölgelerdeki Beden Eğitimi ve Spor Yüksekokullarından  746 öğrenci katılmıştır. Öğrencilere, istihdam durumuna yönelik 5 dereceli (Hiç Katılmıyorum, Katılmıyorum, Karasızım, Katılıyorum, Tamamen Katılıyorum) Likert tipi üç maddelik ifade yöneltilmiştir. Maddelerin aritmetik ortalaması ve standart sapmaları hesaplanmış, gruplar arası farklılığı bulmak için tek boyutlu varyans (One-Way ANOVA) analizi, farklılığın nereden kaynaklandığını belirlemek için de Tukey Testi kullanılmıştır. Araştırma sonucunda; BES eğitimi veren yükseköğretim kurumlarına alınan öğrenci sayısı ile bu öğrencilerin mezuniyet sonrası istihdam edilmesi arasında bir orantısızlığın bulunduğu, bununla birlikte kamu kurumları ile özel kuruluşlarda istihdamın kısıtlı olduğu bulunmuştur

Bilateral Severe Sterile Inflammation with Hypopyon after Simultaneous Intravitreal Triamcinolone Acetonide and Aflibercept Injection in a Patient with Bilateral Marked Rubeosis Associated with Ocular Ischemic Syndrome

We report the clinical course of a diabetic patient with bilateral cataract and rubeosis in association with ocular ischemic syndrome and initially treated him with simultaneous intravitreal 2 mg aflibercept and 2 mg triamcinolone acetonide injection at the same setting prior to planned cataract surgery and further photocoagulation. However, sterile anterior segment inflammation characterized by hypopyon occurred four days apart in OU. Right eye developed the sterile inflammation at the third postinjection day and the left eye developed the sterile inflammation at the seventh postinjection day (two days after the uneventful cataract surgery with intraocular lens implantation) without any pain or significant redness. Vitreous biopsy taken during the right phacovitrectomy was negative for any microbial contamination. Both eyes were treated successfully with intensive topical prednisolone acetate with a relatively good visual outcome. It is likely that underlying ocular ischemic syndrome might have facilitated the formation of sterile inflammation as blood-aqueous barrier disruption and flare have already been present

Recurrent and Massive Life Threatening Epistaxis due to Nasal Heroin Usage

Epistaxis, active bleeding from the nose, is a common ear nose and throat emergency, and can be severe or even fatal. We report a severe life threatening recurrent massive nasal bleeding caused by intranasal heroin use that has not hitherto been reported in the English literature. A 24-year-old male who took heroin several times nasally presented with massive nasal bleeding. A blood transfusion and an operation to halt nasal bleeding were required. The patient did not experience a bleeding attack 2 months following cessation of nasal heroin use

The effect of L-theanine on the oxidant-antioxidant balance in serum and lung tissue in experimentally induced sepsis in rats

139-147Sepsis induces lung injury and respiratory distress syndrome and is therefore potentially fatal. L-theanine (LT), an amino acid found in tea, is a bioactive compound with an important antioxidant, anti-inflammatory, and antifibrotic properties. The purpose of this study was to evaluates whether, LT exhibits protective effects against lung tissue damage by determining its effect on oxidative stress, inflammation and mineral levels in an experimental model of cecal ligation and perforation (CLP)-induced sepsis in rats. Rats were randomly divided into three groups (n=6): sham, CLP, and CLP+LT. LT was administered intraperitoneally (750 mg/kg) in two equal doses immediately and 12 h after surgery. Malondialdehyde (MDA), advanced protein oxidation product (AOPP), myeloperoxidase (MPO), total antioxidant status (TAS), total oxidant status (TOS), oxidative stress index (OSI), and ischemia modified albumin (IMA) values were determined spectrophotometrically. Serum elements (Na, K, Mg, Ca, and Fe), albumin, glucose, triglyceride, and lactate levels were determined using an autoanalyzer. Lung tissues were also examined histopathologically. Treatment of septic rats with LT significantly reduced oxidative stress and inflammation in lung tissues and serum. LT also increased albumin and Na levels and reduced triglyceride levels in serum. In conclusion, LT treatment may exhibit a preventive effect against sepsis-induced lung injury by reducing oxidative stress and inflammation, and by regulating osmotic balance