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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) INFOKUM Jurnal Inovasi Pembelajaran Kimia (Journal Of Innovation in Chemistry Education) 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
Jamalum Purba
Department Of Chemistry Education, Faculty Of Mathematics And Natural Sciences, Universitas Negeri Medan, Jl. Williem Iskandar Pasar V, Medan, 20221
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Physics Public Health Social Sciences Veterinary Other

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Development of Project-Based Learning Modules on the Subject of Chemical Equilibrium Purba, Jamalum; Sembiring, Bilham Aditia
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 5 No. 1 (2023): APRIL 2023 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v5i1.44030

Abstract

This study aims to determine the feasibility of project-based learning modules on the subject of chemical equilibrium in accordance with BNSP requirements, which include: (1) Content Feasibility, (2) Presentation Feasibility, (3) Language Eligibility, and (4) Graphic Feasibility, this research also aims to determine student responses to project-based learning modules on the subject of chemical equilibrium. This research was developed using the Research & Development (R&D) method using the ADDIE development model. This research was conducted at Medan State University (UNIMED) and SMA Negeri 6 Binjai. The results of this study indicate that through the development of project-based learning modules on the subject of chemical equilibrium: (1) Average content eligibility by lecturers is 3.7 and by teachers 3.8., (2) Average eligibility presentation by lecturers is 3, 6 and by the teacher 3.7., (3) The average of language proficiency by the lecturer is 3.5 and by the teacher 3.7., (4) The average graphic proficiency by the lecturer is 3.9 and by the teacher 3.8. And the average result of student responses is 3.73. This means that the learning module that has been developed is feasible and does not need to be revised.
Analysis of Students' Learning Outcomes and Scientific Literacy Activities Using Guided Inquiry and Discovery Learning Models Purba, Menti Irawati; Syahputra, Ricky Andi; Purba, Jamalum; Sutiani, Ani; Silitonga, Pasar Maulim
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 5 No. 2 (2023): OCTOBER 2023 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v5i2.55908

Abstract

This research aims to find out whether the Guided Inquiry learning model is better than Discovery Learning in improving scientific literacy activities and student learning outcomes on reaction rate material. The research method used is quasi experimental. The sample from this research consisted of two classes, namely experimental class I which was taught using the guided inquiry learning model, totaling 29 students and experimental class II, which was taught using the Discovery Learning model, totaling 27 students. The results of data analysis show that the average learning outcomes of students using Guided Inquiry (80.69) are higher than the average learning outcomes of students taught using the Discovery Learning model (74.63) and the average scientific literacy activities of students using Guided Inquiry (79.15 ) higher than the average using the Discovery Learning model (73.72). Hypothesis results using the right-hand t-test and α = 0.05 obtained tcount > ttable (2.34 > 1.675) for students' scientific literacy activities and tcount > ttable (2.49 > 1.675) for student learning outcomes so that in this study the null hypothesis (Ho) is rejected and the alternative hypothesis (H₂) is accepted. Thus, it was found that the Guided Inquiry learning model was better than Discovery Learning in improving scientific literacy activities and student learning outcomes on reaction rate material.
Development E-Module of Process Oriented Guided Inquiry Learning on Thermochemistry Simangunsong, Garvin Brilly Anugerah; Purba, Jamalum
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 7 No. 2 (2025): OCTOBER 2025
Publisher : Universitas Negeri Medan

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Abstract

This study aims to develop a thermochemistry e-module based on Process Oriented Guided Inquiry Learning (POGIL) for Grade XI students at SMAN 14 Medan. Based on observations, thermochemistry is considered a difficult topic for students due to the lack of textbooks, learning resources, and appropriate learning media. This research is a development study using the 4D model (Define, Design, Develop, Disseminate). The developed e-module was validated by two chemistry lecturers and one chemistry teacher, and its practicality was tested by 31 students from class XI-3. The initial validation results showed a score of 89.7% for the material aspect and 85.05% for the media aspect, both categorized as very valid. After revisions, the scores increased to 91.8% for the material aspect and 90.8% for the media aspect. The practicality test based on students’ responses gained a score of 90.1%, indicating that the e-module is very practical for use in learning. Therefore, the POGIL-based thermochemistry e-module is proven to be valid and practical, and it effectively supports students’ interest and understanding in learning thermochemistry.
Developing a Problem-Based Student Worksheet Integrated with Scientific Literacy in Thermochemistry Maria Angelina Barus; Jamalum Purba
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 7 No. 1 (2025): APRIL 2025
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v7i1.67988

Abstract

The purpose of this study was to determine the feasibility and student response to the development of a Problem-Based Integrated Science Literacy Student Worksheet (LKPD) for Thermochemistry. The study used Research and Development (R&D) with the 4D development model (Define, Design, Develop, Disseminate). Purposive sampling was used to select 35 students from class XI IPA 1 of SMA Negeri 1 Bangun Purba as the experimental class. The instruments used were a BSNP-based feasibility assessment sheet and a student response questionnaire. The results showed that the developed LKPD was valid and highly suitable for use. This was demonstrated by the average feasibility score of 3.62. The results of the student response questionnaire showed an average score of 3.65, indicating a high level of student interest. It can be concluded that the development of a Problem-Based Integrated Science Literacy Student Worksheet (LKPD) integrated with science literacy is highly effective as a supplementary teaching material in schools because it can improve students' critical thinking skills and motivation to learn thermochemistry.
Inquiry Based Learning STEM Teaching Materials to Improve Students’ Thinking Skills in Stoichiometry Panggabean, Freddy Tua Musa; Silitonga, Pasar Maulim; Sutiani, Ani; Purba, Jamalum; Gultom, Risdo
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.
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

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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

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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
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.
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 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 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 Rahmatsyah Rahmatsyah, Rahmatsyah Ratu Evina Dibyantini Rica Ariani Purba Risdo Gultom Riska Fitria, Riska Rolian Ade Fitri Sabani Sabani Sanimah Sembiring, Bilham Aditia 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. 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