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All Journal Jurnal Matematika & Sains Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) Journal of Mathematical and Fundamental Sciences Jurnal Pendidikan Kimia Universitas Riau Jurnal Tadris Kimiya Jurnal Pendidikan Kimia (JPKim) JOURNAL OF SCIENCE AND SOCIAL RESEARCH Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Indonesian Journal of Chemical Science and Technology Hydrogen: Jurnal Kependidikan Kimia Jurnal Teknologi Pendidikan : Jurnal Penelitian dan Pengembangan Pembelajaran SCIENCE : Jurnal Inovasi Pendidikan Matematika dan IPA Ensiklopedia: Jurnal Pendidikan dan Inovasi Pembelajaran Saburai Educenter: Jurnal Ilmiah Pendidikan Jurnal Sains dan Teknologi Makara Journal of Science Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA) Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Jurnal Sains dan Ilmu Terapan Unesa Journal of Chemistry EDUCENTER JURNAL PENDIDIKAN Journal of Humanities Education Management Accounting and Transportation Indonesian Journal of Jamu
Iis Siti Jahro
Universitas Negeri Medan
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Journal : JOURNAL OF SCIENCE AND SOCIAL RESEARCH

 1 
DEVELOPMENT OF INTERACTIVE E-LKPD BASED ON THE R2L METHOD TO IMPROVE STUDENTS’ HOTS SCIENCE LITERACY Sembiring, Silvia Gressiela Br; Jahro, Iis Siti
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 2 (2025): May 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i2.2996

Abstract

Abstract: This research aims to find out data and information about students' needs of Interactive e-LKPD based on the Reading to Learn (R2L) method to improve Students’ HOTS Science Literacy on Reaction Rates; to find out data and information on the level of interactive feasibility of E-LKPD developed; to determine the influence of the interactive implementation of E-LKPD; to determine the level of effectiveness of interactive E-LKPD. This investigation employs a 4D model methodology. Based on questionnaire results 88.2% students’ needs to E-LKPD based on R2L Method. Based on four material expert validators, it was determined that 4.32 of the material had a very valid or feasible, while 87.40% of student responses were rated as "very interesting." There is an influence in the use of E-LKPD with R2L method with a significance result of 0.000 <0.05. The level of effectiveness of E-LKPD is classified at the medium level with the N-Gain results obtained of 0.48. From these results it is concluded that the E-LKPD based on R2L Method can increase students' HOTS Science Literacy in the medium category. Keywords: E-LKPD, HOTS, Reaction Rates. Reading to Learn, Science Literacy Abstrak: Penelitian ini bertujuan untuk mengetahui data dan informasi tentang kebutuhan siswa terhadap e-LKPD Interaktif berbasis metode Reading to Learn (R2L) untuk meningkatkan Literasi HOTS IPA Siswa pada materi Laju Reaksi; mengetahui data dan informasi tentang tingkat kelayakan interaktif E-LKPD yang dikembangkan; mengetahui pengaruh penerapan interaktif E-LKPD; mengetahui tingkat efektivitas E-LKPD interaktif. Penelitian ini menggunakan metodologi model 4D. Berdasarkan hasil angket, 88,2% kebutuhan siswa terhadap E-LKPD berbasis Metode R2L terpenuhi. Berdasarkan empat validator ahli materi, ditetapkan bahwa 4,32 materi memiliki nilai sangat valid atau layak, sedangkan 87,40% respon siswa dinilai "sangat menarik". Terdapat pengaruh dalam penggunaan E-LKPD dengan metode R2L dengan hasil signifikansi 0,000 < 0,05. Tingkat efektivitas E-LKPD tergolong sedang dengan hasil N-Gain yang diperoleh sebesar 0,48. Dari hasil tersebut dapat disimpulkan bahwa E-LKPD berbasis Metode R2L dapat meningkatkan Literasi IPA HOTS siswa pada kategori sedang. Kata Kunci: E-LKPD, HOTS, Laju Reaksi, Membaca untuk Belajar, Literasi IPA
DEVELOPMENT OF E-LKPD BASED (R2L) TO IMPROVE STUDENTS’ HOTS SCIENCE LITERACY SKILLS Br Bangun, Kurnia Wati; Jahro, Iis Siti
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 2 (2025): May 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i2.3062

Abstract

Abstract: Science literacy is the one very important skill that students must have. Students' ability to read is still classified as low. This reflects that level of higher-order thinking skills (HOTS) in scientific literacy has not been adequately developed. This research used kinds of development known as R&D (Research and Development) research. The product developed that is Interactive E-LKPD based on the R2L method on chemical equilibrium material. The result of need analysis that has been carried out state requires Interactive E-LKPD based on Reading to Learn (R2L) on chemical equilibrium material to increase HOTS Literacy students get data 100% students agree that using the interactive E-LKPD based on Reading to Learn (R2L) to be developed as a learning support. It was found that very feasible to used Sig <0.05, therefore Ha is accepted and H0 is rejected. Result give an interactive influence of E-LKPD based on Reading to Learn (R2L) on chemical equilibrium material on student learning outcomes and shows a increase in students' HOTS Science Literacy abilities also E-LKPD suitable to used. Keywords: Interactive E-LKPD, HOTS Ability, Literacy, R2L
PEMANFAATAN MATERIAL BIOMASSA DAN LIMBAH INDUSTRI SEBAGAI ADSORBEN RAMAH LINGKUNGAN UNTUK PENURUNAN KADAR ION CD(II) DAN ZN(II) DALAM LIMBAH CAIR Jahro, Iis Siti; Tarigan, Aulya Nurfaza Br.; Pandiangan, Elsa Elperida; Silaban, Regina Tesalonika; Kembaren, Theresya Yolanda; Simanullang, Vanessa Putri Rizky
JOURNAL OF SCIENCE AND SOCIAL RESEARCH Vol 8, No 4 (2025): November 2025
Publisher : Smart Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54314/jssr.v8i4.4939

Abstract

Abstract: This study aims to evaluate the effectiveness of utilizing biomass and industrial waste materials as environmentally friendly adsorbents in reducing the levels of heavy metal ions Cd(II) and Zn(II) in industrial wastewater. The research sample was a synthetic waste solution with a metal concentration of 10100 ppm as a model population. The sampling technique used was purposive sampling on four types of adsorbents, namely SCOBY, EDTA-activated teak wood powder, modified fly ash, and iron-magnesium waste. Data were collected through laboratory experiments with metal content measurements using Atomic Absorption Spectroscopy (AAS). Data analysis included Langmuir and Freundlich isotherm methods, as well as pseudo-first and second-order adsorption kinetics models to understand the adsorption mechanism. The results showed that ironmagnesium waste was able to reduce Cd(II) and Zn(II) levels by more than 99%, followed by fly ash and SCOBY biomass with significant efficiency. This study demonstrates the great potential of sustainable adsorbent materials that support the principles of a circular economy and more environmentally friendly waste management solutions. It is recommended to develop industrial scale applications to support the Sustainable Development Goals in the field of providing clean water and proper sanitation.Keyword: Environmentally Friendly Adsorbent, Biomass, Industrial Waste, Heavy Metal Ions, Cd(II), Zn(II)Abstrak: Penelitian ini bertujuan untuk mengevaluasi efektivitas pemanfaatan material biomassa dan limbah industri sebagai adsorben ramah lingkungan dalam menurunkan kadar ion logam berat Cd(II) dan Zn(II) dalam limbah cair industri. Sampel penelitian berupa larutan limbah sintetik dengan konsentrasi logam 10100 ppm sebagai populasi model. Teknik sampling yang digunakan adalah purposive sampling pada empat jenis adsorben, yaitu SCOBY, serbuk kayu jati teraktivasi EDTA, fly ash termodifikasi, dan limbah besi-magnesium. Data dikumpulkan melalui eksperimen laboratorium dengan pengukuran kadar logam menggunakan Atomic Absorption Spectroscopy (AAS). Analisis data meliputi metode isoterm Langmuir dan Freundlich, serta model kinetika adsorpsi pseudo-orde satu dan dua untuk memahami mekanisme penyerapan. Hasil menunjukkan bahwa limbah besi-magnesium mampu menurunkan kadar Cd(II) dan Zn(II) hingga lebih dari 99%, diikuti oleh fly ash dan biomassa SCOBY dengan efisiensi yang signifikan. Penelitian ini menunjukkan potensi besar material adsorben berkelanjutan yang mendukung prinsip ekonomi sirkular dan solusi pengelolaan limbah yang lebih ramah lingkungan. Disarankan pengembangan skala aplikasi industri guna mendukung tujuan Sustainable Development Goals pada bidang penyediaan air bersih dan sanitasi layak.Kata kunci: Adsorben Ramah Lingkungan, Biomassa, Limbah Industri, Ion Logam Berat, Cd(II), Zn(II)
Co-Authors Adelia Yesya Putri Hasibuan Agnes Yuniarty Simbolon Aldo Geo Frengky Saragih Amalia, Meisya Anggun Maharani Angin, Jansen Riko Perangin Ani Sutiani Ani Sutiani Anisa Nursalsabillah Nasution Annisa Rahayu Annisa Rahayu Ardiansyah Ardiansyah Asep Wahyu Nugraha Asep Wahyu Nugraha Aulianti, Dita Ayi Darmana Ayi Darmana Ayi Darmana, Ayi Az Zahra, Salwa Banu Nursanni Bohari M. Yamin Bohari M. Yamin Br Bangun, Kurnia Wati Catur Kurniawan CINDY CINDY Daeli, Dinastini Damanik, Haryana Damanik, Syifa Namira Debora Putri Sitorus Debora Putri Sitorus Desri Berliana Daeli Djulia Onggo Djulia Onggo Djulia Onggo Dwi Rahmanisa Dwiyanda, Fadhilla Efrio Angelina Sitio Elit Manaman Gulo Esther Jacoba Martha Vertelman Fadhila, Nabila Nur Fahimah Martak Fitria Febrianti, Fitria Gavril Orlando Tumio Manalu Gurning, Mita Agresia Harahap, Dhini Haryati Hasibuan, Hanisah Hotma Br Butar Butar Hutagalung, Tien Parsaulian Hutagaol, Rahul Hutauruk, Rafli Intan Ayu Safitri Intan Fahira Yuzan Ismunandar Ismunandar . Ismunandar Ismu Izwani, Putri Khairi Jasmidi Jasmidi Jasmidi Juwitaningsih, Tita Kembaren, Theresya Yolanda Khaira, Mutiah Khuzaimah Dasopang Maibang, Siti Rahmah MANIK, INDA WATI Manullang, Marisa Marham Sitorus Marpaung, Mutiara Evelin Yoseva Meli Sartika Silaban Moondra Zubir Mutia Patmasari Batubara Nasution, Anisa Nursalsabillah Nasution, Fadiya Malona Nasution, Rida Anastasia Nikita, Ade Rani Nurfajriani Nursanni, Banu Pandiangan, Elsa Elperida Panjaitan, Nola Sari Petra van Koningsbruggen Pratama, Muhammad Rizky Putri Faradilla Putri Rizkia, Putri Putri Yustika Sary Rafida Khairani Ratu Evina Dibyantini Ratu Evina Dibyantini Regina Gresella Br Panjaitan Retno Dwi Suyanti Rode Juwita Sinaga Said, Fahrezi Hasyim Sakinah, Sheila Saragih, Innovayani Sarah, Arina Sami Sarnika Simbolon Sary, Putri Yustika SATI, NAFFA Sembiring, Niki Arih Ersada Br Sembiring, Silvia Gressiela Br Siahaan, Suria Bersinar Sihombing, Cindy Monalisa Sijabat, Hotman Priwaldi Silaban, Regina Tesalonika SIMANJUNTAK, PUTRINA Simanullang, Selafionita Simanullang, Vanessa Putri Rizky Simaremare, Happy G. Maritoma Simatupang, Septania Oniza Sinaga, Steven Siregar, Anggita Rahma Siregar, Eka Guspi Anti Sitorus, Francisca T. A Situmorang, Elsa Hasri Novensa Sri Adelia Sari Suryani Suryani Suryani Suryani Susanto Imam Rahayu Susanto Imam Rahayu Sutiani, Ani Syafira, Eka Ananda Syafitri, Amelia Syafriani Syafriani, Syafriani Syahputra, Ricky Andi Tama, Gita Citra Tania Evelin Tarigan, Anjany Tasya Br Tarigan, Aulya Nurfaza Br. Turnip, Yulika Hotrina Vebilla May Ningsih Veronika, Christy Chirona Windayani, Neneng