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All Journal JPMS (Jurnal Pendidikan Matematika dan Sains) Jurnal Pendidikan Matematika dan IPA Sains Olahraga : Jurnal Ilmiah Ilmu Keolahragaan TABULARASA Jurnal Tematik Jurnal Ilmu Pendidikan Indonesia PROSIDING SEMINAR KIMIA Chemistry in Education Lantanida Journal Jurnal Obsesi: Jurnal Pendidikan Anak Usia Dini Jurnal Penelitian Kesehatan Suara Forikes Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Pendidikan Kimia (JPKim) EKSAKTA : Jurnal Penelitian dan Pembelajaran MIPA Indonesian Journal of Medicine AL-HAYAT: Journal of Biology and Applied Biology Efektor Ideas: Jurnal Pendidikan, Sosial dan Budaya Jurnal Paedagogy Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Budapest International Research and Critics in Linguistics and Education Journal (Birle Journal) Eduproxima : Jurnal Ilmiah Pendidikan IPA Indonesian Journal of Chemical Science and Technology Khazanah Intelektual Didaktika: Jurnal Kependidikan Jurnal ComunitA Servizio Seminar Nasional Peningkatan Mutu Pendidikan KATALIS: Jurnal Penelitian Kimia dan Pendidikan Kimia Jurnal Warta Desa (JWD) Jurnal Penelitian Sains dan Pendidikan (JPSP) Educenter: Jurnal Ilmiah Pendidikan Jurnal Pijar MIPA Jurnal Ilmu Pendidikan Indonesia JURNAL PENELITIAN BIDANG PENDIDIKAN Duconomics Sci-meet (Education & Economics Science Meet) Mahir : Jurnal Ilmu Pendidikan dan Pembelajaran JIPI (Jurnal IPA dan Pembelajaran IPA) Proceeding of International Conference on Multidisciplinary Research EDUCENTER JURNAL PENDIDIKAN J-CEKI Prosiding Seminar Nasional Keguruan dan Pendidikan (SNKP) Proceeding of The International Conference on Mathematical Sciences, Natural Sciences, and Computing

Ramlan Silaban

Chemistry Education, Faculty Of Mathemathics And Natural Science, Universitas Negeri Medan, Indonesia

Author-ID : 3694302

Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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MENINGKATKAN AKTIVITAS DAN HASIL BELAJAR SISWA PADA PEMBELAJARAN IPA MENGGUNAKAN PENDEKATAN SAINTIFIK SISWA KELAS V SD SABILINA TEMBUNG Mira Andriyani; Fauziyah Harahap; Ramlan Silaban
JURNAL TEMATIK Vol 8, No 3 (2018): JURNAL TEMATIK
Publisher : JURNAL TEMATIK

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jt.v8i3.12629

This study aims to improve the activity and student learning outcomes in science lessons class V Sd Private Sabilina Tembung Scientific approach. This research is action research (PTK). The samples in this study were 40 third-grade students for every cycle I and II. The results of the data analysis proved that an increase in activity and student learning outcomes. An increase in activity and student learning outcomes very well. The percentage gain scores for student activities at the beginning of the test trials was 30.00%. later in Cycle I obtained an average percentage score of 68.49%, for the results obtained in Cycle I study an average percentage of 82.50% completeness. later in Cycle II obtained an average percentage of 91.68% of student activity, and to learn the results obtained by an average of 92.65% completeness. Based on observations of the activities of teachers, students, teachers opinion, student responses and student learning outcomes that include classical mastery and purpose, then the Application of Scientific could be declared effective approach to teaching science.

ANALISIS EFEKTIVITAS PENGGUNAAN APLIKASI ZOOM PADA PEMBELAJARAN KIMIA SECARA DARING DI MASA PANDEMI COVID-19 Lusyana Rahman; Ramlan Silaban; Nurfajriani Nurfajriani
PROSIDING SEMINAR KIMIA 2021: SEMINAR NASIONAL KIMIA 2021
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Karena adanya penyebaran Covid-19 terjadi perubahan mendasar dalam pelaksanaan kegiatan pembelajaran kimia. Kegiatan pembelajaran yang mulanya secara konvensional dan praktek di laboratorium beralih ke pembelajaran berbasis online. Salah satu aplikasi yang dapat digunakan untuk pembelajaran online yaitu Zoom Cloud. Tujuan penelitian ini adalah untuk mengetahui efektivitas penggunaan aplikasi zoom pada pembelajaran kimia secara daring di masa pandemi Covid-19. Penelitian ini menggunakan metode deskriptif kualitatif. Subjek pada penelitian ini ialah mahasiswa pendidikan kimia dengan domisili wilayah aceh sebanyak 85 orang. Teknik pengumpulan data ialah dengan pengisian angket menggunakan google form. Berdasarkan hasil penelitian diperoleh bahwa penggunaan aplikasi Zoom pada pembelajaran kimia secara online di masa pandemi Covid-19 cukup efektif dengan persentase 74,66 % aspek kepuasan, 73,17% aspek komuniksi dan 70,66% aspek kepuasan dalam kategori baik. Secara umum efektifitas penggunaan aplikasi zoom pada pembelajaran kimia secara daring di masa pandemi Covid-19 sudah sangat baik, mahasiswa sering menggunakan aplikasi zoom, aplikasi Zoom sangat efektif dalam berkomunikasi dan aplikasi zoom cukup mudah digunakan. Kata kunci: Efektifitas, Pembelajaran Kimia, Aplikasi Zoom, COVID-19

PENGEMBANGAN MODUL MAKROMOLEKUL BERBASIS PROYEK DENGAN PENDEKATAN SETS (SCIENCE, ENVIRONMENT, TECHNOLOGY AND SOCIETY) Delanining Saragih; Ramlan Silaban; Ayi Darmana
PROSIDING SEMINAR KIMIA 2021: SEMINAR NASIONAL KIMIA 2021
Publisher : PROSIDING SEMINAR KIMIA

Show Abstract | Download Original | Original Source | Check in Google Scholar

Penelitian ini bertujuan untuk melakukan pengembangan modul makromolekul berbasis proyek dengan pendekatan SETS dan mengetahui kelayakan modul makromolekul berbasis proyek dengan Pendekatan SETS. Modul ini menerapkan kurikulum 2013 revisi. Jenis penelitian yang digunakan adalah penelitian pengembangan (R&D) yang merujuk pada pengembangan ADDIE. Tahapan penelitian pengembangan yang dilakukan yaitu analisis kebutuhan, perancangan dan pengembangan. Analisis kebutuhan dilakukan dengan melakukan observasi dan wawancara langsung dengan guru kimia di sekolah. Modul dirancang sesuai dengan silabus dan kurikulum yang diterapkan sekolah. Modul yang dikembangkan selanjutnya divalidasi oleh validator ahli dengan menggunakan angket sebagai instrumen untuk menentukan kelayakan modul. Hasil validasi menunjukkan bahwa modul markromolekul berbasis proyek dengan pendekatan SETS memperoleh rata-rata sebesar 4.37 berada dalam kategori sangat layak atau sangat valid, sehingga dapat digunakan sebagai sumber belajar perserta didik. Kata kunci: Modul Makromolekul, Proyek, Pendekatan SETS, R&D

Analysis of the Quality of Used Cooking Oil Used in Frying Chicken Dian I Sinurat; Ramlan Silaban
Indonesian Journal of Chemical Science and Technology (IJCST) Vol 4, No 1 (2021): JANUARY 2021
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v4i1.23091

This study aims to determine the quality of oil quality that is used repeatedly by frying chicken with the SNI. Bulk oil is used for frying the chicken with 11 frying repetitions. Repetition of oil before frying, repeat 1 time frying up to 10 frying times. Then the oil is tested for water content, Free Fatty Acid (FFA), peroxide value and iodine value. From this study, the quality of cooking oil was obtained for the range of: water content 0.03- 1.04%(w/w), Free Fatty Acids (FFA) 0.39-1.01%(w/w), peroxide value 5,99-18,465 mekO2/kg, iodine value 3.255-3.55 gI2/100g oil. Based on the various tests, the water content up to the oil from frying 3, Free Fatty Acid to oil from frying 3, the peroxide value to frying oil 4 still meets the SNI 01-3741-2013 oil quality standard. And in the iodine value test, all repeated frying results still meet the SNI 01-3741-2013 oil quality standard.

Pengembangan Pedoman Dan Kit Praktikum Kimia Inovatif Berbasis Problem Based Learning Julia Mardhiya; Ramlan Silaban; Mahmud Mahmud
Jurnal Pijar Mipa Vol. 15 No. 5 (2020): Edisi Khusus Penelitian Pengembangan Pengkajian Ilmu dan Pengajaran MIPA
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram

Penelitian ini bertujuan mengembangkan pedoman dan kit praktikum kimia berbasis PBL dan efek penggunaan pedoman serta kit praktikum kimia terhadap hasil belajar kognitif, sikap, dan keterampilan siswa kelas X SMA/MA. Desain penelitian menggunakan model ADDIE dan implementasi menggunakan desain one shot case study.ÃÂ Sampel yang diambil menggunakan teknik purposive sampling. Instrumen berupa lembar uji kelayakan pedoman dan kit praktikum, tes, lembar observasi keterampilan dan sikap. Pedoman dan kit praktikum dinyatakan layak berdasarkan isi, bahasa, kegrafikan dan penyajian. Pedoman dan kit praktikum kimia kelas X semester genap efektif digunakan dalam pembelajaran karena hasil uji menunjukkan bahwa hasil belajar kognitif, sikap dan keterampilan siswa rata-rata masing-masing 81,82, 81,56 dan 81,59 lebih tinggi dari pada nilai KKM yaitu 75,00.

Pengembangan Pembelajaran Kimia Larutan Berdasarkan Ilmu Pengetahuan dan Pengaruhnya Terhadap Hasil Belajar dan Minat Siswa di Kelas XI SMA Ramlan Silaban; Freddy Tua Musa Panggabean; Sary Marcella Sitompul; Patricia Rohana Septiana Simarmata; Irving Yosafat Silaban
Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Vol 1, No 2 (2019): OKTOBER 2019
Publisher : Universitas Negeri Medan

This study aims to obtain chemistry-based teaching materials for scientific literacy on buffer solution materials that meet BSNP criteria, and to the extent able to improve the chemistry learning outcomes of high school students. This type of research is the development of ADDIE research model carried out in class XI MIA SMA Parulian 1 Medan. The instruments used were test and non-test instruments that had fulfilled validity. The study was conducted in 2 stages, namely the manufacturing phase of teaching materials based on scientific literacy and the limited trial phase. The results of the study are (1), it has been obtained teaching materials Buffer Solution based on science literacy that meet BSNP standards namely content eligibility = 3.51, presentation eligibility = 3.49, Language eligibility = 3.64, and feasibility of graphic = 3.69. (2), the results of limited trials in learning indicate that the average value of student learning outcomes in experimental class I was 83.10 higher than experimental class II of 75.24. (3), the results of limited trials in learning showed that the average student interest in the experimental class I was 79.33 higher than in the experimental class II which was 69.45.

Pengembangan Media Pembelajaran Kimia Berbasis Android Pada Materi Termokimia Kelas XI SMA A'in Donasari; Ramlan Silaban
Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Vol 3, No 1 (2021): APRIL 2021
Publisher : Universitas Negeri Medan

The aim of this research was to know the feasibility and student learning outcomes of chemistry learning media based on android. This research is a type of research and development which is adapted from the ADDIE Analysis, Design, Development Implementation model. The media developed was tested on 30 students of class XI IPA RK Serdang Murni Lubuk Pakam Private High School. The data was collected through the expert validation sheet of student learning outcomes. The data analysis technique used quantitative and qualitative data analysis. The results of the research and the development concluded that: (1) Android-based chemistry learning media for class XI IPA students in this thermochemical material was developed with a 4D model and designed in the form of an application in the form of an android studio with the java programming language. (2) Android-based chemistry learning media for class XI Senior high school’s students have been declared eligible (valid) to be used in thermochemical learning. Eligibility (validity) of Android-based chemistry learning media for high school students of class XI, is found qualitatively based on the evaluation of material expert validators and media experts in terms of the feasibility of content, presentation, language and graphics according to BSNP with a mean of 4.04. (3) Based on the learning outcomes of students who are taught using Android-based chemistry learning media, it is not the same with the KKM value (75) based on the obtained mean of 90.17 with the highest value of 100 and the lowest score of 80.Thus, Android-based chemistry learning media in thermochemical is suitable for school use.

Pengembangan Media Pembelajaran Berbasis Android Pada Materi Kesetimbangan Kimia Ramlan Silaban; Melhyada Veronika Panggabean
Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Vol 4, No 1 (2022): APRIL 2022
Publisher : Universitas Negeri Medan

This study aims to determine the feasibility of Android-based chemistry learning media developed based on BSNP standards and to determine student responses to ChemsDroid media. The model used in this research is a 4-D development method from 3 stages, namely: (1) define; (2) design; and (3) development. ChemsDroid android-based media development received an assessment from 3 expert lecturers (material experts and media experts), two chemistry teachers and research samples. The research population was all students of class XII MIA SMA Negeri 1 Perbaungan. The research sample was 1 class XII MIA using total sampling technique. The instrument used was a media feasibility questionnaire non-test instrument based on BSNP standards. Based on the results of data analysis, the Android-based chemistry learning media developed have met the eligibility standards of the BSNP with an average feasibility of 3.61 with very valid criteria and do not need to be revised. The results of student responses to ChemsDroid media obtained a total percentage of 97.71%, which means that students receive and respond to the media very well.

Pengembangan Media Pembelajaran Berbasis Android Pada Materi Laju Reaksi Ramlan Silaban; Pelita Ananda Sianturi
Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Vol 3, No 2 (2021): OKTOBER 2021
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v3i2.22814

This study aims to see whether the learning outcomes of students who are taught with Android-based chemistry learning media are higher than the KKM scores, determine the feasibility of Android-based chemistry learning media developed based on BSNP standards and determine student responses to ChamRaAte media. The media feasibility data and student responses were analyzed descriptively, while the learning outcome data were statistically analyzed with the left side t test. Based on the results of data analysis, the Android-based chemistry learning media developed met the BSNP eligibility standards with an average feasibility of 3.8 with very valid criteria and did not need to be revised. The results of student responses to ChamRaAte media obtained a total percentage of 98%, which means that students received and responded to the media very well. The results of the t test using SPSS 25 obtained sig (2-tailed)> 0.05 (0.142> 0.05) and - t table <t count (-1.729 <1.531), which means that the learning outcomes of students who are taught with Android-based chemistry learning media are higher than KKM value.

Development of Integrated Natural Science Practicum Guide Integrated Inquiry Approach to Improve Student Learning Outcomes Rezki Maya Ananda; Marham Sitorus; Ramlan Silaban
Budapest International Research and Critics in Linguistics and Education (BirLE) Journal Vol 4, No 1 (2021): Budapest International Research and Critics in Linguistics and Education, Februa
Publisher : BIRCU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birle.v4i1.1606

This study aims to obtain a practicum guide for Integrated Natural Sciences in SMP integrated with guided inquiry approach. This research is a research and development research and experiment. The population in this study were all students of class VIII SMP Negeri 2 Padangsidimpuan. The instrument used was a feasibility questionnaire based on the National Education Standards Agency, a feasibility questionnaire based on conformity with the guided inquiry learning model, cognitive test instruments, critical thinking skills test instruments, and skills observation sheets. The research data were analyzed using independent sample T-test and correlation test with SPSS 21 for windows at a significance of 0.05 with tcount> ttable and rcount> rtable. The results showed that: the Integrated Natural Science book in schools still has shortcomings so that it needs to be developed, the practicum manual that has been developed in Integrated Natural Science learning class VIII semester I is feasible based on the National Education Standards Agency and is in accordance with the model Guided inquiry learning, students' skills are more developed than students using Integrated Natural Science books in schools, student learning outcomes are better than student learning outcomes using Integrated Natural Science books in schools, thinking ability level The critical thinking ability of students is higher than the critical thinking skills of students using the Integrated Natural Science book in schools, there is a significant relationship between skills and the improvement of student learning outcomes and there is a significant relationship between the level of critical thinking skills of students with an increase in student learning outcomes.

Co-Authors A'in Donasari Abai Manupak Tambunan Afni, Khairul Ajat Sudraja Ajat Sudrajat Ajat Sudrajat Akmalia, Nur Albinus Silalahi Andalia Asmi Anna Juniar Aristo Hardinata Asmi, Andalia Ayi Darmana Bajoka Nainggolan Bajoka Nainggolan Boni Mariska Ratnawati Br Singarimbun, Veronica Liasta Bronika Septiani, Bronika Chintia Dewi Sukri Cintia Fitriani Rumapea Cintia Fitriani Rumapea David Frans Pardamean Sihombing Day Dosmayhot Simaremare Delanining Saragih Deni Rahman Marpaung Devi Anriani Siregar Dewi Susanti Dewi Syafriani Dian I Sinurat Eddiyanto Eddiyanto Effi Nurma Husnitha Eka Kartika Silalahi Elisabet Singarimbun Elsa Ginting Elvana, Ayu Emmi Silvia Herlina Erdiana Gultom Erni Juliani Siregar ESRIDA HUTAHAEAN Ester Manalu Eva Fadillah Evi Irianti Fauziah Fauziah Fauziyah Harahap Fauziyah Harahap FELIA MUTIARA HUTAPEA Freddy T.M. Panggabean Freddy T.M. Panggabean Freddy Tua Musa Panggabean Gloria Sirait Grace Octavia Hutasoit Hasibuan, Desy Rahmayanti Hendro Pranoto Herla Rusmarilin Herry Purwanto Panjaitan Hersakso Sinurat Hery Widijanto Hilda Pratiwi Ida Duma Riris Ida Duma Riris Iis Siti Jahro Iis Siti Jahro Iis Siti Jahro Iis Siti Jahro Iis Siti Jahro Indra Lasmana Tarigan Indrayani, Lisa Inki Yun Lamtiur Irving Josafat Alexander Julia Mardhiya Justinos Ray Nainggolan Juwitaningsih, Tita Khairani Fitri Kiki Ledya Laila Tussifah Lubis Lusyana Rahman Lusyana Rahman Mahmud Mahmud Mahmud Mahmud Mandike Ginting Manihar Situmorang Manihar Situmorang manihar Situmorang, manihar Marham Sitorus Marham Sitorus Marianna E Pasaribu Marianna Pasaribu Marpaung, Fytry Vebiola Martina Asiati Napitupulu Maryam Jamilah Melhyada Veronika Panggabean Melhyada Veronika Panggabean Mhd Burhan Anggara Mira Andriyani Molani Paulina Hasibuan Monalisa Martha Siahaan Moondra Zubir Muhammad Iqbal Mutiara Agustina Nst Nainggolan4, Bajoka Napitupulu, Rahel Ronauli Kurniaasih Nazira, Nirwana Nina Mardiana (F01108057) Nunung Sri Mulyani Nurfajriani Nurfajriani Nur Nurfajriani Nurfajriani Nurfajriani Nurfajriani Nurfajriani Nurfajriani Nurfajriani, Nurfajriani Nurhayani Nurhayani Osi Annauli Br Girsang Pakpahan, Debora Pangondian Hotliber Purba Patricia Rohana Septiana Simarmata Pelita Ananda Sianturi Pelita Ananda Sianturi Purba, Friska Juliana Rabiah Afifah Daulay Rafles Sinaga Rahmadani Renata Hutagalung Retno Dwi Suyanti Retno Dwi Suyatni Rezki Maya Ananda Rini Selly, Rini Riza Manullang Riza Sahala Manullang Rizky Emiliya, Rizky Roselva Theresia Manalu Rosidah, Rosidah Salim Efendi Salim Efendi, Salim Salomo Hutahaen Samosir, Rafidah Almira Sandy Yudha Sandy Yudha Santi Nababan Santri Angelia Damanik Sari, Richa Purmaya Saronom Silaban Saronom Silaban SARONOM SILABAN Sary Marcella Sitompul Sary MF Sitompul Sary MF Sitompul Shinta Rap Sitinjak Simanjuntak, Hendra Simanjutak, Mariati Purnama Simatupang, Lisnawaty Simson Tarigan Sinaga, Rika Nailuvar Sio Tuti Gultom Sitinjak, Shinta Rap Susilo Sudarman Syafruddin Ilyas Tini Sulastri Tini Sulastri Tita Linyan Pardede Trisna W Simanullang Trisna W Simanullang Vera Roni Setiawan Veronika Meiyuina Simatupang Vivi Hutapea Vivi Hutapea Wesly Hutabarat Wesly Hutabarat Wesly Hutabarat, Wesly Wulan Dwi Safitri Yudha, Sandy Yulia Fitri Zainuddin Muchtar Zulfahri, Zulfahri

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