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Sjaifuddin, Sjaifuddin
Pendidikan IPA FKIP Universitas Sultan Ageng Tirtayasa
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Education Engineering Immunology & microbiology Languange, Linguistic, Communication & Media Mathematics Physics Social Sciences Other

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Development of Guided Inquiry-Based Student Worksheets on the Concept of Classification of Living Organisms to Train Students Science Process Skills Padliah, Siti; Sjaifuddin, Sjaifuddin; Alamsyah, Trian Pamungkas
Jurnal Pijar Mipa Vol. 20 No. 6 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i6.9759

Abstract

Science learning in schools should not only emphasize conceptual understanding but also foster science process skills that train critical thinking, analytical reasoning, and problem-solving abilities. However, classroom practice is still dominated by rote memorization, leaving students’ science process skills underdeveloped. This study addresses the gap by developing a Guided Inquiry-based Student Worksheet on the concept of living things classification. The unique contribution of this student worksheet lies in its integration of guided inquiry phases with authentic classification activities, enabling students to engage in exploration, observation, and independent analysis. Unlike conventional worksheets that mainly provide summaries or drill questions, this product is designed to stimulate scientific investigation and active participation. The research adopted the 4D development model (Define, Design, Develop, Disseminate), although this study was limited to the Develop stage. Nine validators (three media experts, three material experts, and three science teachers) and 35 seventh-grade students participated as respondents. Validation results indicated an average feasibility score of 86.9% (“highly feasible”), while student responses reached 87.2% (“very positive”). These findings confirm that the developed student worksheet is not only valid in terms of content and presentation but also well-received by students. Beyond providing an alternative learning material, the broader implication of this study is that Guided Inquiry-based student worksheet can serve as a strategic tool to cultivate science process skills by combining discovery learning with real-life classification practices. Consequently, this product has the potential to enrich science learning with more meaningful and activity-oriented approaches, while preparing students to face 21st-century challenges that demand critical thinking, collaboration, and evidence-based reasoning.
Current patterns and distribution of suspended solids on the sea coast Nugroho, Iwan; Sulaiman, Fatah; Sjaifuddin, Sjaifuddin
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 14, No 3 (2025): SEPTEMBER 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.3.44402

Abstract

The ocean faces a variety of environmental challenges, including pollution, overfishing, habitat destruction, and climate change. These threats can have significant impacts on marine ecosystems and the livelihoods of coastal communities. The sea is also affected by currents, which are the continuous and directional movement of seawater. A number of variables, including wind, temperature, salinity, and the earth's rotation, influence ocean currents. Ocean current patterns are complex and can vary greatly depending on the region and time of year. Ocean current patterns can significantly impact the distribution and movement of suspended solids in the ocean. High levels of suspended solids can reduce water clarity, making water appear cloudy. The value of the concentration of suspended solids in a body of water greatly affects how high its turbidity is. Hydrodynamic models are used to study the movement of water and sediment in estuaries and coastal areas, including tidal, wave, and current effects. Understanding the movement of suspended solids in the ocean is important because it can help predict the spread of pollutants, determine sediment transport patterns, and understand the impact of suspended solids on marine ecosystems.Keywords:Current patternsSuspended solidsHydrodynamicsSea coast
Keanekaragaman Jenis Bambu Di Cagar Alam Rawa Danau Serang Banten Sebagai Materi Pengembangan Pendidikan Konservasi Leksono, Suroso Mukti; Sjaifuddin, Sjaifuddin; Marianingsih, Pipit; Rahmah, Siti Sarah Aulia; Ekanara, Bambang; Fajariyanti, Nofita
Bioedukasi: Jurnal Pendidikan Biologi Vol 13, No 1 (2020): Bioedukasi: Jurnal Pendidikan Biologi
Publisher : Department of Biology Education Faculty of Teacher Training and Education Sebelas Maret Un

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/bioedukasi-uns.v13i1.40400

Abstract

The Rawa Danau Nature Reserve in Serang Banten is a highland swamp conservation area that is still left on the island of Java, but its existence is currently very threatened by human activities to fulfill its needs. Therefore, awareness of the importance of biodiversity through conservation education is needed. Conservation education requires materials or facilities that are close to people's lives, one example is bamboo plants. Bamboo is quite well known by the public, because it is used in everyday life. This study aims to find out the types of bamboo in Rawa Danau natural reserves which are then packaged as material for the development for Conservation Education. The research and development method is used to obtain the Conservation Education product. The result found 8 types of bamboo consisting of 5 genera, namely Dinochloa scandens, Gigantochloa apus, Gigantochloa atroviolacea, Gigantochloa pseudoarundinacea, Schizostachyum iraten, Bambusa vulgaris, Dendrocalamus asper, Gigantochloa atter. Furthermore, people’s knowledge about the types of bamboo are used as material for Conservation Education that can increase knowledge, attitudes, skills, awareness and participation of the community in preserving environmental sustainability
Co-Authors Amarullah, Ahmad Ardie, R. Arum, Ninda Efrilliana Asep Muhyidin asep saefullah Bambang Ekanara Diah, Ila Nurmila Diana Ayu Rostikawati Fajariyanti, Nofita Fathurrohman, M. Fitria Riany Eris Havita, Vivit Nurhikmah Indah Juwita Sari Ishak, Ishak Iwan Nugroho Jantriyani, Jantriyani Mudmainah Vitasari Mulyanah, Euis Yanah Murni, Dewi Nestiadi, Adi Nulhakim, Lukman Nuraina, Nina Nurmayulis Padliah, Siti Pipit Marianingsih R. Ahmad Zaky El Islami Rahmah, Siti Sarah Aulia S. Hidayat, S. Sri Mulyati Sulaeman, Agus Sulaiman, Fatah Sumiyani, Sumiyani Suroso Mukti Leksono Susiyanti, Susiyanti Taufik, Annisa Novianti Trian Pamungkas Alamsyah, Trian Pamungkas Wulandari, Febia