TUNAS : Jurnal Pendidikan Biologi

PENGEMBANGAN MODUL PEMBELAJARAN BERBASIS CRITICAL INCIDENT TECHNIQUE TERHADAP KEMAMPUAN SINTESIS INFORMASI PADA MATERI SISTEM PERTAHANAN TUBUH

2026-11-03T08:38:05+07:00

Penelitian ini bertujuan menghasilkan modul berbasis Critical Incident Technique materi sistem perahanan tubuh dengan kategori layak dan efektif dalam meningkatkan kemampuan sintesis isformasi siswa. Penelitian ini menggunakan Research and Development (R&D) dengan model pengembangan ADDIE. Penelitian dilaksanakan pada guru biologi dan siswa kelas XI SMA Negeri 2 Bae Kudus. Hasil penelitian menunjukkan bahwa: (1) Rancangan modul berbasis Critical Incident Technique yang dikembangkan terdiri dari sampul modul, bagian awal, pendahuluan, dan penutup. (2) Validasi media mendapat presentase 92% dengan kategori sangat layak. Validasi materi mendapat 90% dengan kategori sangat layak. Serta penilaian siswa pada uji skala kecil memperoleh 77% dengan kategori layak. (3) Efektivitas modul diukur melalui angket siswa yang menunjukkan respon positif sebanyak 80%, sehingga modul dikategorikan bahan ajar yang efektif untuk pembelajaran. (4) Hasil hipotesis melalui Uji Mann-Whitney menunjukkan nilai signifikansi 0,033 < 0,05, sehingga modul berbasis Critical Incident Technique berpengaruh terhadap kemampuan sintesis informasis siswa.

PROFILE OF EPISTEMIC SCIENCE ASSESSMENT EXPERIENCES: SCIENTIFIC REASONING IN BIOLOGY LEARNING

2026-11-03T09:11:14+07:00

This study aimed to describe students’ scientific reasoning assessment experiences in high school biology learning. The study employed a descriptive quantitative method involving 216 eleventh-grade students from A- and B-accredited senior high schools in Bandung and Cimahi. Data were collected through assessment experience questionnaires using a Likert scale and semi-structured interviews as supporting data. Data analysis was conducted descriptively for each sub-element of assessment experience. The results showed that students’ assessment experiences were categorized as moderately good, with score ranges from 2.41 to 2.77. The highest scores were found in assessments measuring scientific reasoning types as well as social and technological contexts, while the lowest scores were found in controlled experimental design. Interview results indicated that biology assessments had begun to incorporate real-life contexts and data analysis; however, assessment experiences based on scientific investigation were still not evenly implemented.

ANALISIS PEWARISAN GENETIK DIABETES MELLITUS MELALUI STUDI KOMPARATIF TIGA GENERASI UNTUK MENGUNGKAP POLA HEREDITAS PENYAKIT KRONIS

2026-11-03T09:37:47+07:00

Diabetes mellitus is a noncommunicable disease with a high prevalence rate that is known to be closely linked to genetic factors. This study aims to examine the patterns of genetic inheritance of diabetes mellitus across three generations with a history of the disease. The methods used in this study were qualitative descriptive techniques, including interviews, observations, and pedigree analysis, to track the distribution of diabetes mellitus across generations. The results indicate that diabetes mellitus follows an autosomal dominant inheritance pattern, as evidenced by the presence of affected individuals in nearly all generations regardless of gender. The highest percentage of patients was found in Family B at 41.7%, followed by Family C at 29.2%, and Family A at 17.6%. These findings confirm that genetic factors play a significant role in the transmission of diabetes mellitus across generations, although environmental and lifestyle factors also contribute to the onset of this disease

INTEGRATING BIOMECHANICS AND HUMAN PHYSIOLOGY CONCEPTS INTO THE HOMBO BATU TRADITION OF SOUTH NIAS FOR INTEGRATED SCIENCE EDUCATION

2026-11-04T17:01:38+07:00

This study aimed to develop and evaluate the effectiveness of a Problem-Based Learning (PBL) model integrated with the local wisdom of South Nias, known as Hombo Batu (traditional stone jumping), in enhancing secondary school students' scientific attitudes and physics problem-solving abilities. The study employed a Research and Development (R&D) approach using the ADDIE (Analysis, Design, Development, Implementation, and Evaluation) framework and was conducted in South Nias Regency, North Sumatra, Indonesia. The developed instructional materials, comprising a model book, teacher's guide, student book, and ethnophysics-based student worksheets, were subjected to expert validation and field testing. The effectiveness of the model was evaluated through a quasi-experimental pretest–posttest control group design involving 68 junior high school students, divided equally into experimental and control groups. Data were analyzed using normalized gain (N-gain) and Multivariate Analysis of Variance (MANOVA). The results indicated that the developed instructional materials achieved a high validity score of 93.6%. Regarding physics problem-solving abilities, the experimental group attained an N-gain of 0.73, classified as high, compared with 0.41, classified as moderate, in the control group. Furthermore, the experimental group achieved a mean scientific attitude score of 86.50%, indicating a very high category. MANOVA results revealed a statistically significant multivariate difference between the experimental and control groups in the combined outcome variables (p < 0.001). These findings demonstrate that integrating Hombo Batu ethnoscience into the PBL framework provides a promising pedagogical approach for connecting indigenous cultural knowledge with abstract physics concepts. The developed model supports contextualized scientific learning while promoting physics problem-solving abilities and positive scientific attitudes. This study highlights the potential of indigenous local wisdom as a meaningful foundation for developing culturally responsive and contextually relevant physics education

PENGEMBANGAN SIMULATOR PRAKTIKUM DIGITAL BERBASIS HTML PADA MATERI SISTEM HORMON UNTUK MENDUKUNG PENGALAMAN BELAJAR KONTEKSTUAL DI SMPN 1 BURNEH

2026-11-03T10:35:40+07:00

Materi sistem hormon bersifat abstrak, sedangkan pembelajarannya masih didominasi buku teks sehingga kurang mendukung pengalaman belajar kontekstual. Penelitian ini bertujuan mengembangkan simulator praktikum digital berbasis HTML bernama HormonLab yang valid dan praktis pada materi sistem hormon di SMPN 1 Burneh. Penelitian menggunakan metode Research and Development model 4D yang dibatasi sampai tahap Develop dengan subjek 28 siswa kelas IX B (25 responden). Instrumen berupa lembar validasi ahli materi dan ahli media, validasi serta observasi guru pamong, dan angket respon siswa, yang dianalisis secara deskriptif kuantitatif persentase. Validasi ahli materi 94,44%, ahli media 98,61%, dan guru pamong 96,53% (sangat layak), observasi pembelajaran 85,00% (sangat baik), dan respon siswa 76,48% (baik). Simulator dinyatakan valid dan praktis. Penelitian selanjutnya disarankan melanjutkan ke tahap Disseminate dan menguji efektivitasnya terhadap hasil belajar.