8 results
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2. An Examination of Reproduction and Development in Secondary School Biology Curricula: Türkiye and Germany
- Author
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Sena Seçil Akpinarli and Salih Levent Turan
- Abstract
Biology, a living science, is known as a balance and complement among other branches of science. Just like the science of biology, biology as a course also plays a very important role among other courses at all school types and grades. It is thought that the adults of the future should not be deprived of knowledge in the field of biology and should use every correct information they have acquired in their daily life to overcome related problems they may encounter. For the change that occurs in the individual's life to be permanent, the way to effective education is through a curriculum developed with socio-cultural, scientific and technological developments, taking into account the conditions of t he country. For example, comparing other countries' educational practices and curricula based on the results from international assessments such as PISA TIMSS. According to the PISA science scores (2018), Germany has performed above the average determined by the OECD. Therefore, current education programs in Munich are discussed as an example in this research. This study adopted document analysis, one of the qualitative research methods, as the methodology. The "2018 Secondary Education Biology (9, 10, 11 and 12th Grades) Curriculum" published by the Ministry of National Education in Türkiye and the "Biology Curriculum of Germany" published by Kultusministerkonferenz were examined. While examining the documents in the study, they were subjected to content analysis. According to the findings, as in Bavaria, instead of encouraging rote learning regarding these topics for the sole purpose of university entrance purposes, Türkiye should include in curricula or teach in seminars the social and ethical aspects of HIV/AIDS, sexual/reproductive health, adolescent development, transmission and prevention of diseases, reproductive drug diagnostics, biomedical processes, opportunities, and risks. As a result, there are some differences in terms of content in the curriculum of both countries. [For the full proceedings, see ED654100.]
- Published
- 2023
3. Integrating Biology and Mathematics Using IMS-TEAM Framework
- Author
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Duygu Sönmez
- Abstract
STEM education is on demand more than ever as the workforce relies on 21st century skills and STEM disciplines. This paper presents a framework (IMS-TEAM) for integration of mathematics and science with the use of technology and modeling in an authentic context. The activity based on this framework is designed for and implemented with forty-four 8th grade students in Turkey. The study was conducted to investigate the impact of the activity as well as the IMS-TEAM framework. A qualitative methodology was utilized. Data analysis revealed that different components of our conceptual framework fostered the integration of mathematics and science affecting the nature of students' engagement with the activity. Different frameworks are required to be adapted to different environments with the consideration of learners and teachers. Future research investigating the effectiveness of IMS-TEAM framework adapted to different content and disciplines would provide more evidence on the effectiveness of the framework.
- Published
- 2024
4. STEM Project-Based Activity: Bio-Efficacy of Microalgae
- Author
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Buber, Ayse and Unal Coban, Gul
- Abstract
Science, technology, engineering, and mathematics (STEM) project refers to experiments conducted to address problems, make improvements, or discover new things in those fields that can be tested using the scientific method. This paper describes a long-term STEM project in which pre-service science teachers (PSSTs) have a chance to discover new application fields of microalgae and use them for bio-efficacy. One of the PSSTs' projects is described in detail. This STEM project-based activity lasted for 8 weeks. In the results, a product developed by PSSTs is a cling film which has an antioxidant effect owing to microalgae and sodium alginate. Besides, this environmentally friendly product is equivalent to plastic foils used nowadays. The production processes of this cling film will be presented in detail. According to these processes, some implications for improving the product and facilitating the process will be presented at the end of the paper.
- Published
- 2023
- Full Text
- View/download PDF
5. Research Trends about Analogy Studies in Science Education: A Descriptive Content Analysis
- Author
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Sezer, Kübra and Karatas, Faik Özgür
- Abstract
Analogies are bridges between prior knowledge and new knowledge to make meaning of the new one. Analogies are particularly effective in teaching science concepts that are not very apparent in the students' everyday lives due to their abstract nature. For this reason, it is essential to adapt analogies to teach new concepts effectively in science education. Analogy-related studies published between 2009 and 2020 were examined in this manuscript to determine the use of analogies as a teaching technique in science education (Physics, Chemistry, Biology). To reach the studies about "Analogy," ERIC, EBSCO, Springer LINK, Taylor & Francis, Wiley Online Library Full Collection, Science Direct, ProQuest Dissertations, Theses Global, Google Scholar, and Scopus databases were searched. Then, Turkish databases, including ULAKBIM and YÖK (National Thesis Center), were also searched. A total of 80 research papers published between 2009 and 2020 that met the study's criteria were examined. Within the scope of the study, the subject areas, purpose, sample, results, and suggestions of compiled analogy studies were focused on. Based on the analysis, it was determined that most of the analogy research was conducted in the field of chemistry, the most employed methodology was qualitative research, and the most common purpose of these studies was to see the effects on academic achievement. When the studies were conducted to examine academic achievement, it was seen that the use of analogy applications as a teaching technique in science teaching has positive results on student achievement.
- Published
- 2022
6. Reproductive Biology and Pollination Ecology of Fritillaria michailovskyi Fomin (Liliaceae), Endemic to East Anatolia (Turkey).
- Author
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Aslay, Meral, Yıldız, Faruk, Kaya, Ozkan, and Bita-Nicolae, Claudia
- Subjects
BIOLOGICAL evolution ,POLLINATION ,FRITILLARIA ,POLLEN ,BIOLOGY ,ORNAMENTAL plants - Abstract
Fritillaria is highly endangered in their natural habitats, and these species are perennial bulbous plants with an important medicinal and ornamental value whose reproductive strategies and adaptive evolution mechanisms are still not fully clear. Therefore, the reproductive strategies of endemic species, like Fritillaria michailovskyi Fomin are important to detect the community structure and the diversity patterns of ornamental plants. The current paper on the reproductive strategy of F. michailovskyi, a rare endemic species, was carried out at the Erzincan Horticultural Research Institute, Turkey. Our results indicate that the flowering stages of F. michailovskyi may be divided into eight phases. According to pollination experiments and the pollen/ovule ratio, and the self-incompatibility index (SII) in an ex-situ population, F. michailovskyi indicated high levels of xenogamy and self-incompatibility. It was determined that the pollination of F. michailovskyi mostly depended on pollen vectors, and the effective pollinators of F. michailovskyi were Apis mellifera and Bombus terrestris. In addition, average seed number, seed germination, and average seed viability were found as 144, 46%, and 67%, respectively. The stigma receptivity, pollen grains, and pollen viability were detected as 83%, 252,000, and 95%, respectively. Our study is the first report providing a detailed explanation of the reproductive strategy of this rare endemic species, which could aid in the genetic evolution and conservation of this valuable taxa. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
7. Growth pattern, mortality and reproductive biology of common sole, Solea solea (Linneaus, 1758), in the Sea of Marmara, Turkey.
- Author
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Kahraman, Abdullah Ekrem, Yıldız, Taner, Uzer, Uğur, and Çanak, Özgür
- Subjects
SOLEA solea ,SEX ratio ,BIOLOGY ,FISH mortality ,DEATH rate ,SPAWNING ,SIZE of fishes - Abstract
The study deals with the growth pattern, mortality, and reproduction of common sole, Solea solea (Linneaus, 1758), from the Sea of Marmara (Turkey). A total of 580 fish specimens were sampled monthly from October 2017 to September 2018. The total length of all sampled individuals ranged from 11.1 to 29.5 cm, corresponding to ages from 1 to 3 years. The length–weight relationship was expressed as W = 0.022 TL
2.6838 , where the slope indicated negative allometric growth. Growth parameters were L∞ = 33.7 cm, k = 0.48, and t0 = −0.18 for all samples. A seasonally oscillating growth model, indicating the amplitude of oscillations, revealed an important seasonal growth pattern. Total, natural, and fishing mortality rates were calculated as 1.42, 0.47, and 1.01, respectively. The exploitation ratio (E = 0.68) indicates that the fishing pressure on the common sole in the Sea of Marmara was high. The sex ratio (♀/♂) was 1.18. The gonadosomatic index (GSI) for females showed that two main spawning seasons were observed: one in spring (May) and one in autumn (September–October). Sizes at the onset of sexual maturity were estimated for both females and males at 21.6 and 18.6 cm, respectively. [ABSTRACT FROM AUTHOR]- Published
- 2021
- Full Text
- View/download PDF
8. The biology and ecology of the invasive silver-cheeked toadfish (Lagocephalus sceleratus), with emphasis on the Eastern Mediterranean.
- Author
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Ulman, Aylin, Yildiz, Taner, Demirel, Nazli, Canak, Ozgur, Yemişken, Emre, and Pauly, Daniel
- Subjects
MARINE biodiversity ,TOP predators ,ECOSYSTEM health ,BIOLOGY ,FOOD chains ,SEA urchins - Abstract
Invasive species pose threats to either human health or inflict ecological and/or economic damage. The silver-cheeked toadfish (Lagocephalus sceleratus), a Lessepsian species, is one of the most harmful species in the Mediterranean Sea, because of its potent neurotoxin, impacts on marine biodiversity, and the increased costs and labor they inflict on fishers. Since the catch and consumption of this pufferfish is prohibited by almost all countries bordering the Mediterranean, they have now expanded into the entire Mediterranean and Black Sea. We performed a comprehensive study of L. sceleratus covering ecological aspects, growth, reproduction, diet and trophic level based on samples from southwestern coasts of Turkey. The estimated growth parameters were L8 = 88.7 cm, K = 0.27 year-1, C = 0.6 and WP = 0.1. Their sexratio was M/F = 1:0.69. Lagocephalus sceleratus appears to be a batch spawner with discontinuous oocyte recruitment and has different spawning seasons in the Eastern Mediterranean which seem to be based on temperature cues which get shorter in duration as one moves north from the Suez. We also report their first positive ecological trait, that they are controlling some other invasive species through their diets, such as lionfish, Red Sea goatfish, rabbitfish and longspine sea urchins, in addition to controlling themselves through cannibalism, which appears to be density-dependent. They are indeed a top predator in the region with a trophic level of 4.1. We suggest that targeted fishing using improved gear-types to reduce fishing gear damages are initiated, and that finding commercial markets for pufferfish could help to naturally fund ongoing control efforts. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
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