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All Journal Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan PENDIPA Journal of Science Education Eduproxima : Jurnal Ilmiah Pendidikan IPA Biocaster : Jurnal Kajian Biologi Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan SEARCH: Science Education Research Jurnal Ilmiah BioSmart
Serena, Nelda Anasthasia
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

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Pengembangan Media Pembelajaran Flashcard pada Mata Pelajaran Biologi Pokok Bahasan Bioteknologi Kelas X SMA Negeri 5 Kota Samarinda Saputra, Apri Prananda; Akhmad, Akhmad; Nasution, Ruqoyyah; Purwati, Sri; Makkadafi, Suparno Putera; Serena, Nelda Anasthasia
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.641

Abstract

The low activeness of students in learning biology is still a common problem found in various educational units, one of which is at SMA Negeri 5 Samarinda City. Biology learning at SMA Negeri 5 Kota Samarinda still faces obstacles in terms of student activeness. So that there needs to be a solution in the form of learning media that is attractive to students. This study aims to develop flashcard learning media in the form of educational cards in biology subjects on the subject of biotechnology and determine the feasibility of the media. The method used is research and development (Research and Development) with the ADDIE model which consists of 5 stages of research. Based on the results of the needs. analysis conducted at SMA Negeri 5 Kota Samarinda, teachers need flashcard learning media by 74%. Meanwhile, students need flashcard learning media by 81% of class X-3 and 82% of class X-7. This development research produces a product in the form of flashcard learning media in the form of a double-sided educational card that is feasible to use based on the assessment of: 1) media expert validators obtained a score of 78.33%; and 2) material expert validators obtained a score of 95.71%. Meanwhile, the response of students in the small-scale trial obtained a score of 80.39% and the response of students in the large-scale trial obtained a score of 81.11%. Meanwhile, the teacher's response obtained a score of 90%. So it can be concluded that the flashcard learning media developed is suitable for use and gets a positive response from students and teachers.
Perhitungan Angka Lempeng Total (ALT) dan Identifikasi Keberadaan Bakteri Escherichia coli pada Mie Basah yang Dijual di Pasar Segiri Kota Samarinda Khatimah, Khusnul; Purwati, Sri; Rambitan, Vandalita Maria Magdalena; Serena, Nelda Anasthasia
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.656

Abstract

Microbiological contamination is one of the factors that affect food safety, especially in wet noodles which have a high moisture content so they are easily damaged. This study aims to determine the number of Total Plate Numbers (ALT) and identify the presence of Escherichia coli in wet noodles sold at Segiri Market, Samarinda City. The research was carried out using a descriptive analytical method through laboratory testing of five wet noodle samples taken by purposive sampling. ALT testing uses the pour plate method on Plate Count Agar (PCA) media, while Escherichia coli testing is carried out by the Most Probable Number (MPN) method followed by confirmation on Eosin Methylene Blue Agar (EMBA) media. The results of the ALT test showed that two samples met the maximum limit of ALT according to SNI 2987:2015 (≤1.0 × 106 colonies/g), while three samples exceeded the threshold. The MPN test showed that four samples were below the maximum limit according to SNI 2987:2015 (≤10 APM/g) and one sample exceeded the threshold. The EMBA confirmation showed two positive samples of Escherichia coli. These results confirm the importance of applying hygienic practices in the processing, storage, and packaging to reduce the risk of microbiological contamination.
Pengaruh Faktor Intensitas Cahaya terhadap Jumlah dan Ukuran Stomata Daun Tumbuhan Monokotil di Arboretum Sempaja (Penunjang Materi Jaringan Tumbuhan) Annisa, Annisa; Herliani, Herliani; Kurniawati, Zenia Lutfi; Serena, Nelda Anasthasia
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.668

Abstract

The effect of light on stomata has been extensively studied, but studies that specifically observed the effect of light intensity on the size and number of stomata in monocot plants at the Sempaja Arboretum, Samarinda, are still very limited, including monocot plants, and have the potential to be a contextual learning resource for biology education in schools. The purpose of this study is to determine the effect of light intensity on the number and size of stomata in monocot plants in the Sempaja Arboretum. This research was carried out from February to May. This study used a Non-Factorial Group Random Design, with 3 different light intensities (morning, noon, and evening). Based on the results of statistical tests (ANOVA and Duncan's follow-up tests), not all species show statistically significant differences in size and number between times (morning, noon, evening). Some species such as Sri Rejeki (Aglonema sp) and Turmeric (Curcuma longa) show statistically insignificant changes. In other species such as Virginia Flower (Commelina virginica), Palm (Arenga pinnata), and Golden Ivory Betel (Epipremnum aureum), the difference in stomata size between times is more pronounced and significant.
Correlation between Critical Thinking Ability and the Quality of Students' Independent Assignments in Histology Course Serena, Nelda Anasthasia; Masitah, Masitah; Kurniawati, Zenia Lutfi
SEARCH: Science Education Research Journal Vol. 4 No. `1 (2025): Okotober 2025
Publisher : IAIN Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47945/search.v4i`1.2133

Abstract

Critical thinking skills are a key component required in completing independent tasks (Sukenda, 2016). This study aims to analyze correlation between students' critical thinking skills and the quality of independent assignments in Histology courses. The research method used was a correlational quantitative approach involving 35 Biology Education study program students who were taking Histology courses. Data were collected through a histology context-based critical thinking test and independent assignment assessment using an analysis rubric. The correlation test results showed a positive correlation between critical thinking skills and the quality of students' independent assignments (r = 0.244, p < 0.05). This finding indicates that although there is a positive correlation coefficient between critical thinking ability and independent assignment quality, the significance value (Sig.) of 0.157 indicates that the correlation is not statistically significant. Based on this data, it can be concluded that there is no significant correlation between students' critical thinking skills and the quality of their independent assignments in the Histology course.
Pengaruh Model Pembelajaran Problem Based Learning Berbasis TPACK terhadap Keterampilan Bertanya Siswa pada Mata Pelajaran Biologi Materi Sel Kelas XI MAN 2 Samarinda Ramadhani, Khairunnisa Salsabila; Masitah, Masitah; Herliani, Herliani; Serena, Nelda Anasthasia; Akhmad, Akhmad
Biocaster : Jurnal Kajian Biologi Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/biocaster.v5i4.693

Abstract

The background of this research is learning models that are limited in variation, which makes the students less active, especially in questioning skills. Because of that, this research has a purpose to find out the effect of implementing the Problem Based Learning (PBL) model based on Technological Pedagogical and Content Knowledge (TPACK) on students questioning skills. This research used a quantitative approach with a quasi experimental method and a non- equivalent control group design. The subjects of this research are 70 grade XI students in MAN 2 Samarinda, including class XI-B as the experimental class and class XI-A as the control class. The instruments used in this research are interviewing the teacher, observing the learning activities, and an assessment rubric of students questioning skills. The results of this research showed that students questioning skills in the experimental class increased significantly compared to the control class, as shown by the Mann-Whitney U test with a significance value of 0.015 < 0.05. The number of questions from students in the experimental class was more varied (20 questions) compared to the control class, which had fewer questions (5 questions). The conclusion is that the implementation of the TPACK based Problem Based Learning (PBL) model has a positive effect on students questioning skills in the cell material of Grade XI.
Analisis Jenis dan Kandungan Mikroplastik Pada Ikan Trakulu (Lepidothyris fernandi) dan Ikan Kerapu (Epinephelus sp) di Muara Ilu, Kelurahan Tani Baru, Kecamatan Anggana, Kabupaten Kutai Kartanegara, Kalimantan Timur Wahyu, Dirga Wahyu Octasandi; Masitah, Masitah; Nasution, Ruqoyyah; Serena, Nelda Anasthasia
Jurnal Ilmiah BioSmart (JIBS) Vol. 11 No. 2 (2025): Jurnal Ilmiah BioSmart
Publisher : Pendidikan Biologi Fakultas Keguruan dan Ilmu Pendidikan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/jibs.v11i2.5267

Abstract

Pencemaran mikroplastik telah menjadi isu global yang serius karena dampaknya terhadap ekosistem perairan dan kesehatan manusia. Penelitian ini bertujuan untuk menganalisis jenis dan kandungan mikroplastik pada ikan Trakulu (Lepidothyris fernandi) dan ikan Kerapu (Epinephelus sp) yang ditangkap di perairan Muara Ilu, Kecamatan Anggana, Kabupaten Kutai Kartanegara, Kalimantan Timur. Penelitian ini menggunakan pendekatan kualitatif dengan metode deskriptif analitis. Sampel diperoleh melalui pemancingan, lalu bagian saluran pencernaan ikan dianalisis menggunakan larutan KOH 10% dan diamati melalui mikroskop cahaya yang terhubung dengan Optilab dan aplikasi Image Raster. Hasil penelitian menunjukkan bahwa ikan Trakulu mengandung tiga jenis mikroplastik yaitu fiber, film, dan fragmen, dengan dominasi fiber sebesar 76,92%. Sementara itu, ikan Kerapu mengandung dua jenis mikroplastik, yaitu fiber dan film, dengan dominasi fiber mencapai 95,08%. Temuan ini menunjukkan bahwa perairan Muara Ilu telah tercemar mikroplastik dan ikan konsumsi lokal berpotensi menjadi vektor masuknya partikel tersebut ke dalam rantai makanan manusia. Penelitian ini diharapkan menjadi dasar dalam pengelolaan lingkungan dan peningkatan kesadaran masyarakat terhadap bahaya pencemaran plastik.
Co-Authors AKHMAD Akhmad Akhmad Annisa Annisa Apriliani, Fadiah Nur Betty Lukiati Destyara, Edita Endang Suarsini Herliani Herliani Hotimah, Auliya Khusnul Jailani Jailani Jailani Khatimah, Khusnul Lumowa, Sonja Verra Tinneke Lumowa, Sonja VT Makkadafi, Suparno Putera Masitah - Masitah Masitah Melo, Angelina Triandini Payung Datu Nasution, Ruqoyyah Pradana, Nirza Purbianti, Rita Ramadhani, Khairunnisa Salsabila Rambitan, Vandalita M.M. Saputra, Apri Prananda Siti Nurhayati Sri Purwati, Sri Turista, Dora Dayu Rahma Vandalita Maria Magdalena Rambitan Wahyu, Dirga Wahyu Octasandi Zenia Lutfi Kurniawati, Zenia Lutfi