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All Journal Journal of Education and Instruction (JOEAI) SAINTIFIKA
Evi Hanizar
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Health Professions Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Physics Social Sciences

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DETEKSI FORMALIN PADA IKAN ASIN MENGGUNAKAN UBI JALAR UNGU (Ipomea batatas L.) Andrew Setyawan; Evi Hanizar
saintifika Vol 23 No 2 (2021)
Publisher : FKIP Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (307.637 KB)

Abstract

The content of formalin in salted fish needs to be known by the public in an easy and inexpensive way. Purple sweet potato (Ipomoea batatas) is one of the plants that contains anthocyanin which will show a color change when reacted with formalin. This study aims to determine whether purple sweet potato extract can detect formalin content in salted fish. The method used is a pure experiment with 5 treatments and 5 replications. Salted fish samples were made by the researcher himself, while purple sweet potato was extracted with a dose ratio of 1:1, 1:2 and 1:3 (v purple sweet potato extract /v aquadest). The observation parameter was the time when the color changed from purple to reddish in the salted fish sample after being dripped with purple sweet potato extract. The data were analyzed statistically using the Kurskall-Wallis test and continued with Duncan's test. The results of the analysis showed that purple sweet potato extract could detect the presence of formalin in salted fish samples (p < 0.05). The treatment with a dose of 1: 1 was able to detect the fastest formalin content at 735.40 seconds compared to treatment 1: 2 (915.20) and treatment 1: 3 (1038.40). This time is close to the time required by the positive control treatment (607.80). The conclusion of this study confirms that purple sweet potato can be used by the public to detect formalin content in food.
Pengembangan Media Komik Digital pada Materi Sistem Hormon untuk Meningkatkan Hasil Belajar Siswa Kelas XI Joko Andi Susilo; Evi Hanizar; Hanif Rafika Putri
JOEAI (Journal of Education and Instruction) Vol. 8 No. 4 (2025): JOEAI (Journal of Education and Instruction)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/joeai.v8i4.16247

Abstract

This research aims to develop and test the feasibility of learning media in the form of digital comics on the hormone system material for class XI as a supporting tool in biology learning. This research uses the ADDIE development model, which consists of five stages: Analyze, Design, Development, Implementation, and Evaluation. The media was validated by two experts, namely material experts and media experts, with validity results of 97% and 90%, respectively, which fall into the very feasible category. Trials were conducted at two schools, namely MA Raudatul Ulum and MA Miftahul Ulum, with 27 students each. Cognitive learning outcomes were analyzed through pretest and posttest, which showed a significant improvement. At MA Raudatul Ulum, the average posttest score reached 84 with a completeness rate of 92%, while at MA Miftahul Ulum, it reached 83 with a completeness rate of 88%. These results indicate that digital comic media is effective in improving students' understanding of hormone system material. Thus, this media can be an alternative solution in biology learning that is more engaging and interactive.   Keywords: Digital Comics, Hormone System, Learning Outcomes
Tingkat Pengetahuan dan Sikap Ilmiah Kelas X Melalui Model Kontekstual Berbasis Proses Budidaya Fungi Mahendra, Bimo; Evi Hanizar; Sarwo Danuji
JOEAI (Journal of Education and Instruction) Vol. 8 No. 4 (2025): JOEAI (Journal of Education and Instruction)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/joeai.v8i4.16348

Abstract

This study aims to analyze the effect of implementing a contextual learning model based on the fungal cultivation process on improving the knowledge and scientific attitudes of Grade X science students at MA Miftahul Ulum Suren in the 2024/2025 academic year. The method used is a quantitative approach with a quasi-experimental design of the Posttest Only Control Design type. The research subjects consisted of two classes: the experimental class with 20 students and the control class with 20 students. The experimental class received instruction using a process-based contextual learning model, while the control class was taught using conventional methods. Data collection instruments included a posttest consisting of 10 essay questions to measure knowledge and an observation sheet to assess students' scientific attitudes. The results showed that the average knowledge level in the experimental class reached 82.5%, while the control class only achieved 71%. Regarding scientific attitudes, the experimental class scored an average of 3.8 (categorized as very good), whereas the control class scored 2.9 (categorized as good). In conclusion, the process-based contextual learning model is more effective in improving students’ knowledge and scientific attitudes, as it links learning materials to real-life contexts, encourages active student engagement, and fosters critical thinking and scientific skills.   Keywords: Fungal Cultivation, Knowledge, Process-Based Contextual Learning, Scientific Attitudes
Pengembangan Media Biorama (Biologi Irama) pada Materi Ekosistem untuk Meningkatkan Minat dan Hasil Belajar Siswa Kelas X SMA Damayanti, Selvi; Evi Hanizar; Sarwo Danuji
JOEAI (Journal of Education and Instruction) Vol. 8 No. 4 (2025): JOEAI (Journal of Education and Instruction)
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/joeai.v8i4.16559

Abstract

This study aims to develop an audio-visual Biorama (Biology Rhythm) learning medium on ecosystem material to improve the interest and learning outcomes of 10th grade high school students. The Biorama Media combines video visualization with educational songs as a means of delivering material. The research method used is Research and Development (R&D) with the ADDIE development model (Analysis, Design, Development, Implementation, Evaluation). Expert validation results indicate that the media is highly suitable for use. The implementation of the Biorama media showed a significant improvement in students' learning outcomes, increasing from 17.8% (pretest) to 89.2% (posttest), while students' learning interest reached 85.4%, which falls into the high category. These findings indicate that the Biorama media is effective in enhancing students' interest and learning outcomes and can serve as an alternative educational media that is engaging, contextual, and practical.   Keywords: Learning outcomes, Ecosystem material, Biorama media, Learning interest
Co-Authors Andrew Setyawan Damayanti, Selvi Hanif Rafika Putri Joko Andi Susilo Mahendra, Bimo