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All Journal JBIO: jurnal biosains (the journal of biosciences) PELANGI PENDIDIKAN Jurnal Pendidikan dan Pembelajaran Kimia (JPPK) JURNAL PENELITIAN SAINTIKA SEMIRATA 2015 JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pendidikan Kimia Universitas Riau Jurnal Tadris Kimiya J-PEK (JURNAL PEMBELAJARAN KIMIA) Jurnal Pendidikan Kimia (JPKim) JOURNAL OF SCIENCE AND SOCIAL RESEARCH Best Journal (Biology Education, Sains and Technology) INFOKUM Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) JURNAL PENDIDIKAN SAINS SOSIAL DAN AGAMA Indonesian Journal of Chemical Science and Technology Jurnal Pengabdian kepada Masyarakat Britain International for Linguistics, Arts and Education Journal (BIoLAE Journal) Indonesian Science Education Research (ISER) JURNAL TEKNOLOGI INFORMASI & KOMUNIKASI DALAM PENDIDIKAN Jurnal Pendidikan Indonesia (Japendi) Jurna Beta Kimia Chemedu: Jurnal Ilmiah Pendidikan Kimia Jurnal Multidisiplin Indonesia Jurnal Pendidikan IPA Indonesia
Jamalum Purba
Department Of Chemistry Education, Faculty Of Mathematics And Natural Sciences, Universitas Negeri Medan, Jl. Williem Iskandar Pasar V, Medan, 20221
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The Correlation of Mathematics Ability and Chemistry Analysis Ability to Improve Student Learning Outcomes in Buffer Solution Panggabean, Freddy Tua Musa; Fitria, Riska; Sutiani, Ani; Purba, Jamalum; Isnaini, Muhammad
J-PEK (Jurnal Pembelajaran Kimia) Vol 8, No 2 (2023): J-PEK (JURNAL PEMBELAJARAN KIMIA)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um026v8i22023p51-57

Abstract

This study aims to determine the linear and significant relationship between mathematical ability and chemistry learning results; chemical analytical abilities and learning result: association between students' chemistry learning outcomes and mathematical skills and chemical analysis abilities. This type of research is causal research with a quasi-experimental research design. Students in this study were given tests in the form of mathematical ability instruments, chemical analysis abilities, and buffer solution tests. This study found a linear and significant relationship between mathematical ability and students' learning outcomes, a linear and meaningful relationship between chemistry analysis ability and students' learning outcomes, and a significant relationship between mathematical knowledge and chemistry ability.
The Properties of Ethyl Acetate Extract of Frankincense (Styrax benzoin) Using the Maceration Method Susanti, Nora; Purba, Jamalum; Tambunan, Salsabila
Indonesian Journal of Chemical Science and Technology (IJCST) Vol 7, No 1 (2024): JANUARY 2024
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/ijcst.v7i1.56438

Abstract

This study aims to determine the standardization of ethyl acetate extract of frankincense gum using the maceration method. The method used in this study was to standardize the ethyl acetate extract of frankincense using specific and non-specific parameters. The results of standardization with specific parameters showed that the ethyl acetate extract of frankincense latex was blackish brown in color and had a distinctive odor of frankincense. It contained 86.5% soluble compound in ethanol. The results of standardization with non-specific parameters showed a specific gravity of 0.8213 g/ml and an average moisture content of 1.71%. The chemical components contained are Benzoic acid; Vanillin; transCinnamic acid; Phenol, 2-methoxy-4-propyl-; 2-Propanone, 1-(4) -hydroxy-3-methoxyphenyl)-; Benzoic acid, phenylmethyl ester; (Z)-Cinnamyl benzoate; 2-Propenoic acid, 3-phenyl-,phenylmethyl ester, (E) -; and Cinnamyl cinnamate.
Development of IBL STEM Model-Based Teaching Materials Using Wordwall to Improve Students' Critical Thinking Skills Freddy Tua Musa Panggabean; Ani Sutiani; Jamalum Purba
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.v6i2.64196

Abstract

This study aims to develop teaching materials based on the IBL STEM model using the Wordwall application to improve students' critical thinking skills. The development model used refers to the ADDIE model with 30 students of the Chemistry Education Study Program, UNIMED as research subjects. The research instrument used an expert validation sheet and a test of students' critical thinking skills on stoichiometry material as many as 25 questions in the form of multiple choices. The results of the study indicate that teaching materials based on the IBL STEM model using the Wordwall application are feasible and effective in improving students' critical thinking skills in Stoichiometry learning. The feasibility is met qualitatively based on the assessment of material expert validators with an average total score of 4.36 (valid) and the assessment of media expert validators with an average total score of 4.32 (valid). Effectiveness is met based on the results of product implementation and evaluation results and is proven by statistical hypothesis testing (p < 0.05) with an average achievement of increasing students' critical thinking skills of 40.067 ± 9.318.
Pengembangan Bahan Ajar Termokimia Berbasis Masalah untuk Siswa Kelas XI SMA Oktaria, Feri Bidiana; Purba, Jamalum
Jurnal Beta Kimia Vol 4 No 2 (2024): Volume 4, Nomor 2: November 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jbk.v4i2.18909

Abstract

Tujuan dari penelitian ini adalah untuk mengeksplorasi kelayakan penggunaan sumber belajar berbasis masalah untuk termokimia sekolah menengah di kelas XI yang telah divalidasi oleh para ahli dan memenuhi kriteria BSNP. Selain itu, penulis akan mengevaluasi bagaimana siswa menanggapi materi-materi ini. Studi dan pengembangan (R&D) di bawah kerangka ADDIE (Analisis, Desain, Pengembangan, Implementasi, Evaluasi) adalah dasar dari studi pengembangan ini, yang dibatasi pada tahap implementasi. Penelitian menemukan bahwa materi pembelajaran termokimia berbasis masalah untuk siswa kelas XI SMA yang dibuat memenuhi persyaratan BSNP. Kelayakan isi rata-rata 3,66, kelayakan penyajian 3,48, kelayakan bahasa 3,44, dan kelayakan kegrafikan 3,51, yang semuanya menunjukkan hal ini. Bahan ajar kimia yang dikembangkan dengan model ADDIE telah berbasis masalah. Hal ini dapat dilihat dari perolehan skor bahan ajar berbasis masalah sebesar 3,85. Siswa memberikan skor rata-rata 3,68 untuk aspek tampilan, 3,57 untuk aspek materi, dan 3,72 untuk aspek manfaat dalam tanggapan respon siswa.
Implementation of STEM Problem Based Learning Model with Quizizz and iSpring Media Towards Student Learning Outcomes in Stoichiometry Material Azizah, Meilani; Simangunsong, Garvin; Simamora, Putri Elsa; Juwita, Intan; Manalu, Santa Maria; Simanullang, Tasya Putri Haren; Purba, Jamalum
Jurnal Pendidikan dan Pembelajaran Kimia Vol 13, No 3 (2024): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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

Abstract

This study aims to determine the significant differences in student learning outcomes using Quizizz Media and i-Spring Media with the STEM Problem Based Learning model on Stoichiometry material. The population in this study were students of class XI IPA at SMA Swata Sultan Iskandar Muda Meda which were divided into four classes. The research sample was students of class XI IPA selected using random cluster sampling techniques. The instrument used in this study was a test with 20 multiple choice questions. The data collected were in the form of student learning outcome ability test instruments. The results of the study were that there was a significant difference between student learning outcomes taught with the STEM-based Problem Based Learning model using Quizizz media with iSpring media with a Sig. (2-tailed) value of 0.001 ≤ 0.05.Keywords: Quizziz, iSpring, and Problem Based Learning.DOI: 10.23960/jppk.v13.i3.32334
Development of E-Modules Based on Project Based Learning (PjBL) on Periodic System of Elements Material Sinaga, Bunga Apriani; Purba, Jamalum
Jurnal Pendidikan dan Pembelajaran Kimia Vol 13, No 1 (2024): Jurnal Pendidikan dan Pembelajaran Kimia
Publisher : Universitas Lampung

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

Abstract

This research was conducted in November 2023-February 2024 at SMAN 1 Percut Sei Tuan with the aim of finding out: (1) the feasibility of e- learning modules based on Project Based Learning (PjBL) on periodic system of elements material based on the BSNP assessment instrument consisting of content feasibility, appropriateness of presentation, appropriateness of language and appropriateness of graphics, (2) practicality of e- learning modules based on Project Based Learning (PjBL) on material on the periodic system of elements through responses from chemistry teachers and students. This research was carried out with Research and Development (Research and Development ) using the 4D development model ( define, design, develop, disseminate) which is limited to the develop stage . The initial stages carried out in this research were initial analysis, ATP analysis, and analysis of teaching materials. Then the design and creation of e- learning modules based on Project Based Learning (PjBL) were carried out on the material of the periodic system of elements. The final result of the e- module is converted into a flipbook with the help of the Flip PDF Professional application . Then the e-module was validated for its suitability by 6 validators. After carrying out the feasibility validation stage and the revision or improvement stage, a practicality test was carried out through the responses of 2 chemistry teachers and 31 students. The results of the e- module feasibility percentage obtained in the research were content feasibility of 94%, presentation feasibility of 95%, language feasibility of 96%, and graphic feasibility of 85%, where the four assessments were included in the "very feasible" criteria. ". In the practicality test, the percentage obtained by the teacher was 96% and by the students it was obtained at 90%, with the criterion "very practical". Keywords: E- Module, project based learning, periodic system of elements, feasibility,practicality.DOI: 10.23960/jppk.v13.i1.2024.07
Inquiry Based Learning STEM Teaching Materials to Improve Students’ Thinking Skills in Stoichiometry Freddy Tua Musa Panggabean; Pasar Maulim Silitonga; Ani Sutiani; Jamalum Purba; Risdo Gultom
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.v8i2.28870

Abstract

In stoichiometry learning process, mostly educators focus on calculations. Students are not invited to think more critically about stoichiometry application in life. This constraint makes teachers have to develop new learning models, including Inquiry Based Learning (IBL) model, and Science, Technology, Engineering, Mathematics (STEM) based on chemical literacy. This study aims to develop general chemistry teaching materials on stoichiometry using IBL and STEM models based on chemical literacy that are feasible (valid) and capable of improving students' LOTS and HOTS abilities. The development model used is the ADDIE model, with research subjects of 34 students. The result shows that stoichiometry teaching materials using the IBL STEM model based on chemical literacy are valid (feasible) to be applied in learning with an average score of 4.42 for the material aspect and 4.55 for the design aspect. The developed teaching materials have been proven to significantly improve students’ LOTS and HOTS abilities.
Development of General Chemistry Teaching Materials Using the PjBL-STEM Model to Enhance Students' Creative Thinking Skills Purba, Jamalum; Panggabean, Freddy Tua Musa; Sutiani, Ani
Jurnal Tadris Kimiya Vol 9, No 2 (2024)
Publisher : Department of Chemistry Education, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/jtk.v9i2.39318

Abstract

Thinking creatively is a crucial higher-order skill that students must acquire when they graduate from university. This necessitates lecturers designing and developing learning processes that actively engage students while fostering their creative thinking abilities. This study aims to develop and validate general chemistry teaching materials on organic compounds and reactions using the PjBL-STEM model and evaluate their effectiveness in improving students' creative thinking skills. The study employed the Analysis, Design, Development, Implementation, and Evaluation (ADDIE) model. The teaching materials were designed as comprehensive books that adhered to the PjBL-STEM framework. Effectiveness was measured by analyzing improvements in students’ creative thinking abilities through quantitative testing. The results demonstrate that the PjBL-STEM-based teaching materials are valid and feasible for implementation. Their effectiveness in enhancing students' creative thinking abilities was statistically significant (t-count = 32.488; p = 0.000), with an average improvement of 42.725 ± 8.317. The development of PjBL-STEM-based teaching materials offers a valuable tool for chemistry education, effectively promoting creative thinking skills among students. This approach provides a practical framework for lecturers to design innovative, student-centered learning strategies.
Development of Problem-Based Integrated Student Worksheets (LKPD) in Thermochemistry Class XI High School Angelina Barus, Maria; Purba, Jamalum
Jurnal Multidisiplin Indonesia Vol. 4 No. 3 (2025): Jurnal Multidisiplin Indonesia
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jmi.v4i3.2244

Abstract

This study aims to develop a Problem-Based Learning (PBL) student worksheet (LKPD) integrated with scientific literacy on the topic of thermochemistry for Grade XI senior high school students, and to evaluate its feasibility and student responses. The research employed a Research and Development (R&D) method using the 4D development model (Define, Design, Develop, Disseminate), limited to the development stage. The development process began with needs analysis, material and layout design, product development, and expert validation. The instruments used included a BSNP-based feasibility assessment sheet and a student response questionnaire. Validation results from three lecturers and two chemistry teachers indicated that the developed LKPD is valid and highly feasible, with an average feasibility score of 3.62. Meanwhile, product testing conducted on Grade XI MIPA students showed very positive responses with an average score of 3.65. These findings indicate that the PBL-based LKPD integrated with scientific literacy is effective in improving students' understanding of thermochemistry concepts, motivating them, and enhancing critical thinking skills and scientific literacy in chemistry learning. This LKPD also has the potential to serve as an innovative teaching material aligned with the Merdeka Curriculum.
The Influence of the Problem Based Learning Model on Student Interest and Learning Outcomes Ginting, Priskilla; Purba, Jamalum
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 6 No. 1 (2024): APRIL 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i1.57279

Abstract

This research aims to (1) determine the effect of using the Problem Based Learning model on student learning outcomes in reaction rate material (2) knowing the effect of using models Problem Based Learning on students' learning interest in reaction rate material. The population of this study were all students of class XI MIPA SMAN 14 Medan. The sampling technique was carried out random sampling, namely class XI MIPA 3 as an experimental class with 34 students. The results obtained are the average value of the experimental data class pretest and posttest is 37.50 and 79.85, which means it is higher than the minimum completeness criteria (KKM) value, namely 75. Data from the normality and homogeneity tests obtained normal distribution and homogeneous data. The results of the hypothesis test were carried out using one sample t-test at the significance level α = 0.05, earned value tcount 2.403 > ttable 1.692 with sig. (2 tailed) 0.022 < α = 0.05 so Ha is accepted and H0 is rejected. Students' interest in learning in the experimental class obtained an average score of 77.02 with high criteria of 47.1% and medium criteria of 52.9%.
Co-Authors Abdul Hamid K Agustina, Mutiara Ahmad Nasir Pulungan Angelina Barus, Maria Ani Sutiani Ani Sutiani Aristo Hardinata Asep Wahyu Nugraha Astri Devi Br Pakpahan Azizah, Meilani Bilham Aditia Sembiring Budi Ali Mukmin Bunga Dewi Cindy Agnesia Cintiya, Henni Dedi P Simatupang Dewi Wulandari Dewi Wulandari Eidi Sihombing Ely Djulia Fadhilah, Nabila Nur Feronica Agustina Ginting Fonica, Arini Freddy Tua Musa Panggabean Ginting, Priskilla Gultom, Risdo Halim Simatupang Hery Widijanto Hutahaean, Harvei Desmon Hutapea, Delima Damayanti Intan Juwita, Intan Jasmidi Jasmidi Jasmidi Jasmidi Juan Samuel Simanjuntak Krisbiantoro, Philip Anggo Lamria, Melinda Lena Lisnawaty Simatupang M Nizam Manalu, Santa Maria manihar Situmorang, manihar Maria Angelina Barus Marudut Sinaga Meilani Azizah Menti Irawati Purba Mery Adelin Panggabean Muhammad Haris Effendi Hasibuan Muhammad Isnaini Muhammad Isnaini Nora Susanti Nora Susanti Nora Susanti Novelyani Siregar Oktaria, Feri Bidiana Pasar Maulim Silitonga Pasar Maulim Silitonga Priskilla Ginting Purba, Menti Irawati Purba, Rica Ariani Purba, Rohni Duani Rahmatsyah Rahmatsyah, Rahmatsyah Ratu Evina Dibyantini Rica Ariani Purba Risdo Gultom Riska Fitria, Riska Rolian Ade Fitri Sabani Sabani Sanimah Sembiring, Bilham Aditia Siahaan, Ella Oktavianna Sibuea, Gorat Viktor Simamora, Putri Elsa Simangunsong, Garvin Simangunsong, Garvin Brilly Anugerah Simanjutak, Mariati Purnama Simanullang, Tasya Putri Haren Sinaga, Bunga Apriani Sinulingga, Kiki A. Putri Br. Sipahutar, Putri Desiana Siti Muliana Tambunan Siti Rohana Siregar Sutiani, Ani Syahputra, Ricky Andi Syahputra, RickyAndi Tambunan, Salsabila Tambunan, Siti Muliana Tarigan, Miska Likasina Tiur Malsari Siregar Yosia Gopas Oetama Manik Yusnidar, Erika Zainuddin Muchtar Zuhairiah Nasution, Zuhairiah