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All Journal International Journal of Evaluation and Research in Education (IJERE) Jurnal Pendidikan Kimia Indonesia Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Prosiding Pendidikan Sains Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) Edu Sains: Jurnal Pendidikan Sains dan Matematika Jurnal Tadris Kimiya Jurnal Penelitian Pendidikan IPA (JPPIPA) Orbital: Jurnal Pendidikan Kimia Jurnal Pendidikan Kimia (JPKim) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan EDUKATIF : JURNAL ILMU PENDIDIKAN Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) Jurnal Pendidikan Dasar Perkhasa Jurnal Pengabdian kepada Masyarakat Nusantara IJPD (International Journal Of Public Devotion) Hydrogen: Jurnal Kependidikan Kimia J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Innovative: Journal Of Social Science Research Jurnal Pendidikan Sains Indonesia (Indonesian Journal of Science Education) JIPI (Jurnal IPA dan Pembelajaran IPA)
Erlina
Program Studi Pendidikan Kimia FKIP Untan Pontianak
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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The Effect of Different Solvents on Total Tannin Content of Cengkodok (Melastoma malabathricum) Leaf Extracts Masriani Masriani; Khofifah Aditha Parawansa; Risya Sasri; Ajuk Sapar; Erlina Erlina; Ersando Ersando
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 6 (2023): December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i6.9774

Abstract

The use of synthetic dyes as color enhancers or generators has caused various environmental and health problems. Plant tannin biomordants offer an alternative solution to address these issues. The sample used in this study were Cengkodok (M. malabathricum) plants that grow wild in places that get enough sunlight such as shrubs. Phytochemical screening on various parts of the cengkodok plant revealed that the highest tannin content is found in the leaf. However, until now there has been no scientific evidence that presents differences in tannin levels in cengkodok leaf with various types of solvents. This study aims to determine the yield and total tannin content of cengkodok leaf extract obtained through maceration process using methanol, ethanol, and ethyl acetate solvents. The extract yield was determined by comparing the weight of the dry extract with the powdered cengkodok leaf material. The total tannin content was analyzed using UV-Vis spectroscopy at a wavelength of 755.8 nm with Folin-Ciocalteu reagent and sodium carbonate. Tannic acid was used as a reference. The research results showed that the yield values for Cengkodok leaf extracted with methanol, ethanol, and ethyl acetate were 5.05%, 4.72%, and 1.59%, respectively. The total tannin content of cengkodok leaf extracts with methanol, ethanol, and ethyl acetate solvents was 0.47%±0.04, 0.37%±0.01, and 0.19%±0.04, respectively. Based on this research, it can be concluded that methanol is the most effective solvent in extraction and determination of total tannin content of Cengkodok leaf extracts.
The Effect of Different Extraction Methods on Total Tannin Content of Methanol Extract of Simpur Air Leaves (Dillenia suffruticosa) Sri Wahyuni; Masriani Masriani; Risya Sasri; Ajuk Sapar; Erlina Erlina; Ersando Ersando
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 6 (2023): December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i6.9897

Abstract

The use of metal mordants in fabric dyeing can harm the environment and health, so it is necessary to look for natural mordants that are more environmentally friendly. The utilization of Simpur Air leaves (Dillenia suffruticosa) as a biomordant is one of the efforts to produce a more environmentally friendly tannin mordant. D. suffruticosa has been reported to contain tannin compounds in all parts of the plant. However, scientific evidence of differences in the total tannin content of methanol extracts of D. suffruticosa leaves with various extraction methods have not been found so far. This study aims to determine the effect of different extraction methods on the yield value and total tannin content of methanol extracts of D.suffruticosa leaves using UV-Vis spectrophotometric method at a wavelength of 755.8 nm with Folin Ciocalteau reagent. D. suffruticosa leaves are extracted by using three methods, namely maceration, soxhletation and reflux. Tannic acid is used as a comparator. The results show that the yield value of D. suffruticosa leaves extracted by maceration, soxhletation and reflux methods were 8.35%; 12.26%; and 25.24%, respectively. The total tannin content of methanol extract of D. suffruticosa leaves with maceration method is 0.15% ± 0.007; soxhletation is 0.18% ± 0.007 and reflux is 0.21% ± 0.016.  Based on the results of the data analysis, the significance value <0.05 was obtained. It can be concluded that the extraction method affects the yield value and total tannin content of methanol extract of D. suffruticosa leaves.
Inquiry Ability Profile of SMAN 8 Pontianak Students on Salt Hydrolysis Subject Material Fifi Alaida; Erlina Erlina; Ira Lestari; Rachmat Sahputra; Maria Ulfah
Hydrogen: Jurnal Kependidikan Kimia Vol 11, No 5 (2023): October 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i5.8767

Abstract

The inquiry ability is an ability to obtain information through observation or experimentation to solve a problem by using critical and logical thinking skills which include several stages, namely the stages of formulating problems, formulating hypotheses, analyzing data, and concluding. This study aimed to determine student’s ability to inquire about the salt hydrolysis material at SMAN 8 Pontianak. The type of research used is descriptive research using the case study method. The research subjects were 20 students of class XI science at SMAN 8 Pontianak. The instrument used is an inquiry-ability test in the form of 4 essay questions and interview guidelines as a supporting instrument. The results showed that the average ability to inquire of students was included in the good category. The results of the analysis on each aspect stated that the average student inquiry ability in the aspect of formulating problems obtained a value of 80.6% and was classified as a good category. The aspect of formulating a hypothesis has an average value of 73% with a good category. The aspect of analyzing the data has a value of 55.8% with a fairly good category. While the aspect of formulating conclusions has a value of  60.6% with a fairly good category.
Development of E-Supplements of Biomordan from Cengkodok (Melastoma malabathricum) Leaves For Learning Green Chemistry Khofifah Aditha Parawansa; Masriani Masriani; Risya Sasri; Ajuk Sapar; Erlina Erlina
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 6, No 2 (2024): OCTOBER 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i2.57643

Abstract

Green chemistry is one of the elective courses in the Chemistry Education Study Program of FKIP Untan, which focuses on methods to reduce or eliminate the use of chemicals. Learning media has an important role in the learning process as a learning resource to support the learning process. This study aims to determine the feasibility of E-Supplement Biomordan from Cengkodok Leaf (Melastoma malabathricum). The method used in this research is Research and Development (R&D) with the ADDIE development model. The data collection technique used was an indirect communication technique which was carried out by giving an assessment sheet in the form of a checklist to two experts. The assessment contains certain indicators that are assessed using a Likert scale assessment score. The results of the Green Chemistry e-supplement feasibility test obtained a result of 98% with a very feasible category so that it can be used in Green Chemistry courses.
Analysis of Chemistry Interest Level in Merdeka Curriculum Implementation at SMA Negeri 8 Pontianak Rachma Julianty Putri; Hairida Hairida; Rahmat Rasmawan; Erlina Erlina; Maria Ulfah
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 6, No 2 (2024): OCTOBER 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i2.57644

Abstract

Elective subject is the flagship program of Merdeka Curriculum..The elective subject program is based on students’ interest, talents, and aspirations. Therefore, students’ interest level in chemistry, as one of the options for elective subject program is a necessary to determined. This study aims to determine the level of student interest in choosing chemistry as an elective subject, so that teachers could find the best alternatives to increase students’ interest. The research was conducted with quantitative analysis methods and descriptive statistical approaches, using 139 students of grade 11th who have chosen chemistry as the elective subject. The level of students’ interest in chemistry is measured by students’ interest questionnaire. The questionnaire was adopted and developed by aspects of students’ interest: teachers’ role, students’ perception, students’ intrinsic motivation in learning, and meaningful learning of lesson. Content validation test using Aiken formula showed the questionnaire validity is very high, as value 1. Based on the analysis, the result stated that the level of students’ interest was included as high category with 76,11%. All aspects are categorized as high, aspects of the teacher's role in learning with 77.44%, students’ perceptions with 73.63%, students’ intrinsic motivation 78.99% and the meaningfulness of learning lesson with 74.37%.
EFEKTIVITAS PENERAPAN PEMBELAJARAN BERBASIS SETS TERHADAP HASIL BELAJAR SISWA SMPIT NURUL WAHDAH PONTIANAK Hanif Riffalah; Erlina Erlina; Maria Ulfah
Jurnal Pendidikan dan Pembelajaran Khatulistiwa (JPPK) Vol 11, No 4 (2022): April, 2022
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jppk.v11i4.54304

Abstract

AbstractThe aims of this research were to determine students’ learning outcome before and after the learning application based on Science, Environment, Technology and Society (SETS) and to assess the effectiveness of learning application based on SETS towards grade eighth students’ learning outcome of SMPIT Nurul Wahdah Pontianak. The form of this research was preexperimental design with one-group pre-test-post-test design. The subject of this research was 31 students of grade eighth. Data collection technique were measurement, direct communication, and observation. The collected data were analyzed using normality test with Shapiro-Wilk test. The normality test result showed that the Sig. values of pre-test and post-test were more than 0.05 which means that data were distrubuted normally. The result of hypothesis test using Paired Sample T-Test showed that Sig. (2-Tailed) value were 0.000 which is less than 0.05. It means that there are differences between pre-test and post-test result. The learning application based on SETS effective enough to increase the students' learning outcome with N-Gain interpretation by 74%.Keywords: Effectiveness, Learning Outcome, SETS
Metacognitive Assesment Profile of Prospective Chemistry Educators Sumila Sumila; Rachmat Sahputra; Erlina Erlina; Eny Enawaty; Risya Sasri
Jurnal Tadris Kimiya Vol 8, No 2 (2023)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v8i2.28147

Abstract

Metacognitive awareness (MA) plays an important role in classroom learning as it enhances self-teaching capabilities on students. Therefore, it is necessary to know the level of awareness possessed by a teacher. This study aimed to describe metacognitive awareness profile of prospective chemistry educators. The method of research is descriptive quantitative using survey methods. The participants consisted of students undergoing their final semester. The instrument used was the MAIT-18 (Metacognitive-Awareness Inventory for Teachers-18). This instrument has two indicators, specifically cognitive knowledge and regulation. The results showed that students had a good level of cognitive knowledge and regulation with 80% and 77%, respectively. Therefore, the overall percentage of metacognitive awareness obtained was 80%. These results suggest that prospective chemistry educators have a good awareness of metacognition. This is indicates they can influence positive things on students, foster autonomy in teaching and learning, also can be an asset to be an effective teacher.
Measuring meaningful learning through the experience of chemistry education students' in the basics of analytical chemistry practicum Melur Regista Cahyani; Erlina Erlina; Ira Lestari; Masriani Masriani; Maria Ulfah
Jurnal Pendidikan Kimia Vol. 16 No. 2 (2024): August
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkim.v16i2.57849

Abstract

Chemistry Education students often engage in laboratory practicums to develop scientific process skills and enhance the meaning of chemistry learning, as seen in the course basic analytical chemistry. Previous research indicates that the basics of analytical chemistry practicum frequently focus solely on confirming basic knowledge, thus only leading to an improvement in basic experimental skills. This study aims to measure the level of meaningful learning achieved through the experiences of chemistry education students in in the basics of analytical chemistry practicum as evidence to improve the practicum curriculum in order to create more meaningful learning. The research method involves both quantitative and qualitative descriptive approaches, with quantitative data collected using the Meaningful Learning in the Laboratory Instrument (MLLI), which has been modified to measure students' affective and cognitive experiences after learning in the chemistry laboratory. The study involved 60 third semester students who had completed the basics of analytical chemistry practicum course. The results indicate that all aspects were rated as good, with percentage scores of 67% for affective aspects, 74% for cognitive aspects, and 69% for affective-cognitive aspects, yielding an overall average percentage score of 70%. These findings suggest that chemistry education students have achieved significant meaningful learning through their experiences in the basics of analytical chemistry practicum.
Pelatihan Pengembangan Pembelajaran berbasis Entreprenuership bermuatan Kearifan Lokal Hairida Hairida; Masriani Masriani; Eny Enawaty; Rini Muharini; Ira Lestari; Andi Ifriany; Erlina Erlina; Rachmat Sahputra; Maria Ulfah; Eni Mayasari; Risya Sasri; Muhammad Farras Leonasa Agusta
J-ABDIPAMAS (Jurnal Pengabdian Kepada Masyarakat) Vol 8, No 2 (2024): Oktober 2024
Publisher : IKIP PGRI Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30734/j-abdipamas.v8i2.4617

Abstract

ABSTRACTImplementing entrepreneurship as part of the Merdeka Curriculum is considered suboptimal due to the numerous challenges schools face. This is consistent with the survey results among chemistry educators in the Singkawang, which showed that while most have implemented entrepreneurship in their teaching, it has not yet incorporated local wisdom and has not been included in their teaching tools. The purpose of this community service program (PKM) is to enhance educators' ability to develop entrepreneurship-based learning that incorporates local wisdom and to describe educators' responses to the training activities conducted. The method used in this PKM is a training method for 24 chemistry educators in Singkawang, consisting of three stages: preparation, implementation, and evaluation. The results of the PKM activities showed increased knowledge and helped Singkawang's chemistry educators integrate these two concepts into their teaching.Keywords: Learning Development, Entreprenuership, Local Wisdom  ABSTRAKPelaksanaan kewirausahaan sebagai implementasi kurikulum merdeka dirasa belum optimal dikarenakan terdapat banyak kendala yang harus dihadapi oleh sekolah. Hal tersebut sesuai dengan hasil survei pada pendidik kimia Kota Singkawang yang sebagian besar sudah mengimplementasikan kewirausahaan dalam pembelajarannya akan tetapi belum bermuatan kearifan lokal dan belum dituangkan dalam perangkat pembelajarannya. Tujuan PKM ini ialah untuk meningkatkan kemampuan pendidik dalam mengembangkan pembelajaran yang berbasis entrepreneurship bermuatan kearifan lokal serta untuk mendeskripsikan respon pendidik terhadap kegiatan pelatihan yang dilakukan. Metode yang digunakan pada PKM ini ialah metode pelatihan untuk 24 pendidik kimia Kota Singkawang yang terdiri dari 3 tahap. Tahapan yang dilakukan pada PKM ini ialah tahap persiapan, pelaksanaan dan evaluasi. Hasil kegiatan PKM diketahui dapat meningkatkan pengetahuan dan membantu pendidik kimia Kota Singkawang dalam mengintegrasikan kedua konsep tersebut ke dalam pembelajaran.Kata Kunci: Pengembangan Pembelajaran, Entreprenuership, Kearifan Lokal
Co-Authors AA Sudharmawan, AA Agung Hartoyo Aisyah Nur Pratiwi Ajuk Sapar Ajuk Sapar Akrom, Akrom Amsal Alhayat Andi I. Harun Andi Ifriani Harun Andi Ifriani Harun Andi Ifriani Harun* Andi Ifriany Andi Ifriany Harun Andi Ifriany Harun Arief Rahman Azwa Fadilla Wafiq Bella Agustina Dewi Puspita Ismanida dini kartika Dwi Riyan Eni Mayasari Eny Enawati Eny Enawaty Eny Enawaty Eny Enawaty Ersando Ersando Fia Tiaraseta Fifi Alaida Fitria Arifiyanti Fitriani Fitriani Gito Purwono Hairida Hairida Hanif Riffalah Henny Herawaty Husna Amalya Melati Husna Amalya Melati Husna Amalya Melati Husna Amalya Melati* Indah Nirwana Akay Ira Lestari Ira Lestari Ira Lestari Ira Lestari Irene Yudea Listra Isranti Nurul Choiriyah Jamjemah Jamjemah Jenny Pratiwi Khofifah Aditha Parawansa Khofifah Aditha Parawansa Lukman Hadi Lukman Hadi Maria Ulfa Maria Ulfah Maria Ulfah Maria Ulfah Marisa Marisa Martina Vintia Putri Masriani . Masriani Masriani Masriani Masriani Mawaddatul Warohmah Maya Oktari Melur Regista Cahyani Melur Regista Cahyani Mifta Hurrahman Muhammad Farras Leonasa Agusta Nina Mardiana (F01108057) Ningsy Inayati Noval Lerian Nur Hijriyati Nyemas Firda Diannisa Pingkan Ramadhan Sailendra Qois Natasya Rachma Julianty Putri Rachmat Sahputra Rachmat Sahputra Rachmat Sahputra Rachmat Sahputra Rachmat Sahputra Rachmat Sahputra Rachmat Sahputra Rachmat Saputra Rahmat Rasmawan Ratna Kumala Sari Resi Febriyanti Rikah Indriyani Rini Muharini Ririn Apriani Risya Sasri Risya Sasri Risya Sasri Risya Sasri Rody Putra Sartika Rusfamahira Rusfamahira Sarifah Putri Nada Fadillah Selvia L Sinta Puspita Sari Sri Wahyuni Sumila Sumila Syf Bella T. Alkadrie Tomo Djudin Tulus - Junanto Tulus Djunanto Tulus Junanto Ursula Lisfatkandayant Valencya Delima Sianipar Valentina Winda Permata Wanti Silasakti Warsidah Warsidah Yundari, Yundari