cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Nadia Amida
Contact Email
nadia.amida@unib.ac.id
Phone
+6273621170
Journal Mail Official
alotrop.fkip@unib.ac.id
Editorial Address
Jl WR Supratman Kandang Limun Bengkulu
Location
Kota bengkulu,
Bengkulu
INDONESIA
Alotrop Jurnal Pendidikan dan Ilmu Kimia
Published by Universitas Bengkulu
ISSN : 22528075     EISSN : 26152819     DOI : -
Core Subject : Science, Education,
Chemistry Education
Welcome to the Journal Alotrop, is an Open-Acces and peer-reviewed journal aims to publish scientific articles related to chemistry and education :i.e an interaction between natural sciences, educational sciences, technologies and management for both education and sciences and wise use of resources. We particularly encourage manuscripts that discuss contemporary research that can be used directly or inderecly in adressing critical issues and sharing of advanced knowledge and best practices in chemistry and education.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 218 Documents
 17   18   19   20   21 
Model PBI Nabiilah, Laila; Elvinawati; I Nyoman Candra
ALOTROP Vol. 7 No. 2 (2023): Alotrop 2023
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v7i2.31153

Abstract

[The Influence of the Problem Based Learning (PBL) Model on Students' Analysis Ability on Buffer Solution Subjects]. This research is a pre-experimental research type aims to determine the effect of applying the Problem Based Learning (PBL) model on students' analytical abilities on buffer solution materials. The research was conducted at SMAN 4 Bengkulu City with a sample of class XI IPA 3, which consisted of 36 students. The instruments used in this study were analytical ability test sheets and observation sheets. From the research results obtained (1) the average pretest-posttest results experienced a significant increase, namely 7.67 to 64.43 from a maximum score of 100. The results of hypothesis testing using a t-test at the significance level of 0.05 obtained a Sig Value (2tailed) of 0.000 with a decision H0 is rejected and H1 is accepted. This shows that the problem-based learning model has an effect on students' analytical abilities, (2) the N-gain test results obtained an average of 0.61 in the medium category. The percentage increase in analytical skills on differentiating indicators is 66%, organizing indicators is 67%, and indicators of attributing are 51%.
PENINGKATAN HASIL BELAJAR DAN KEAKTIFAN PESERTA DIDIK KELAS X MIPA 1 SMAN 9 KOTA BENGKULU PADA MATERI STOIKIOMETRI KIMIA DENGAN MODEL PEMBELAJARAN PBL yetmi, Yetmi; Melani, Iim; Apriyoanda, Hadi; Handayani, Dewi
ALOTROP Vol. 7 No. 2 (2023): Alotrop 2023
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v7i2.31425

Abstract

Classroom Action Research (CAR) aims to improve learning outcomes and student engagement by utilizing the Problem-Based Learning (PBL) instructional model in Class X MIPA 1 at SMAN 9 in Bengkulu City. The CAR was conducted in May 2023 over 2 cycles. Each cycle comprises 1 session, spanning 3 instructional hours (3 x 45 minutes). The phases of each cycle commence with observations to diagnose issues, followed by design, implementation, event observation, evaluation, and reflection. Based on the results of the conducted data analysis, it was determined that the application of the PBL learning model was able to demonstrate an increase in learning outcomes and student engagement in Cycle 2. The average student learning outcomes improved from 77.66% to 59.38%, accompanied by an increase in the percentage of students achieving competency, from 85.47% to 81.25%. Student participation during the learning process also saw an increase in Cycle 2. Student engagement rose from 66.74% in the moderate category to 78.28% in the high category. Keywords: Learning outcomes, engagement, and PBL
PENGARUH pH DAN WAKTU KONTAK TERHADAP ADSORPSI METILEN BIRU MENGGUNAKAN SERBUK GERGAJI KAYU JATI Baunsele, Boy
ALOTROP Vol. 8 No. 1 (2024): Penelitian Kimia dan Pembelajaran Kimia
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v8i1.32235

Abstract

Methylene blue is a dye used in the textile industry, especially in fabric dyeing, but it has a negative impact on the environment. Various methods have been taken to reduce or even eliminate these pollutants in the environment. This research aims to examine the ability of teak sawdust to act as an adsorbent for methylene blue dye. So far, teak wood sawdust as waste that has only been burned has not been used properly and can be used as an adsorbent for the adsorption of methylene blue. This research using the adsorption method uses an 80 mesh adsorbent. The results showed that adsorption of methylene blue occurred optimally at pH 6, with an adsorption percentage of 99.26% and an optimum contact time of 30 minutes for adsorption with an adsorption percentage of 99.4% and an adsorption capacity of 2.045 mg g-1.
ANALISIS BIBLIOMETRIK MENGGUNAKAN VOSVIEWER: TREND RISET KETERAMPILAN BERPIKIR SISTEM DALAM PENDIDIKAN KIMIA Amida, Nadia
ALOTROP Vol. 8 No. 1 (2024): Penelitian Kimia dan Pembelajaran Kimia
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v8i1.32623

Abstract

This study examines the development of systems thinking skills research in chemistry education. The method used is bibliometric analysis with the help of the VOSViewer application. The research was conducted in 4 stages, namely: 1) collecting publication data using the Scopus database using the keyword "System thinking in chemistry education," 2) processing data using Microsoft Excel application, 3) bibliometric computational mapping analysis using the VOSViewer application, and 4) analyzing the results of computational mapping. Publication data are articles from 2014 to 2023. This research is limited to system thinking skills in chemistry education. The results of the initial findings were re-selected so that 67 publications that met the requirements for research were obtained. Based on the results of computational mapping, it was found that research over the past ten years has fluctuated with the most publications in 2019, a total of 31 publications. This study provides a comprehensive overview and holistic perspective of systems thinking skills in chemistry education and directions for future research by integrating the analysis results with relevant reviews.
Identification of Student Misconception on Reduction-Oxidation Reactions using The Four Tier Diagnostic Test Instrument Vera Dwi Alfina, Vera; Sura Menda Ginting; I Nyoman Candra
ALOTROP Vol. 8 No. 1 (2024): Penelitian Kimia dan Pembelajaran Kimia
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v8i1.34017

Abstract

This research aims to identify students' misconceptions on redox reaction material using the Four Tiers Diagnostics Test. The four tiers/stages are selecting answer, affirmation of the chosen answer, selecting reason of the chosen answer, and the affirmation of the selected reason. The diagnostic was carried out at SMAN (senior high school) 5 Bengkulu. The trial of the diagnostic test was conducted to students of class X MIPA 3 and the misconception diagnostic was conducted to students of X MIPA 2. The results show that the percentage of student misconceptions regarding the redox reaction material was 35% (medium category), while 40% of students understand the concept, and 25% of students do not understand the concept. The highest misconception occurs in the sub-concept of reduction and oxidation reactions (42%), follows by dispropornation and conpropornation reactions, (38%), oxidizing-reducing agents (37%), change in oxidation number from element to compound (24 %).
KORELASI KETERAMPILAN METAKOGNITIF DENGAN HASIL BELAJAR SISWA PADA MATERI HIDROKARBON Indah Permata Sari; Febrian Solikhin; Rina Elvia
ALOTROP Vol. 8 No. 1 (2024): Penelitian Kimia dan Pembelajaran Kimia
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v8i1.34439

Abstract

Penelitian ini merupakan penelitian deskriptif dengan pendekatan kuantitatif bertujuan untuk mendeskripsikan profil keterampilan metakognitif, hasil belajar siswa, dan korelasi keterampilan metakognitif terhadap hasil belajar siswa pada materi hidrokarbon. Penelitian ini dilakukan di SMAN 5 Kota Bengkulu. Subjek penelitian ini adalah kelas XI MIPA 3, XI MIPA 4 dan XI MIPA 5 yang berjumlah 105 siswa yang dipilih berdasarkan teknik purposive sampling dari populasi sebanyak 7 kelas. Pengumpulan data dilakukan dengan cara tes menggunakan instrumen tes tertulis dan non tes menggunakan kuesioner. Analisis data untuk uji korelasi menggunakan aplikasi SPPS 23. Hasil penelitian pada kuesioner keterampilan metakognitif diperoleh sebesar 85,2% yang menunjukkan bahwa keterampilan metakognitif siswa berada pada kategori sangat baik. Aspek keterampilan metakognitif terendah pada bagian keterampilan evaluasi (evaluating skills) diperoleh sebesar 82,8%  yang menunjukkan bahwa sebagian siswa belum dapat merangkum apa yang dibuat, belum memahami dalam menjawab persoalan dan kurang teliti dalam memeriksa jawaban yang telah dibaut pada materi hidrokarbon. Hasil penelitian terhadap hasil belajar siswa pada materi hidrokarbon diperoleh bahwa sebanyak 61,90% siswa pada kategori sangat baik, dan 38,10% pada kategori siswa baik. Hasil uji korelasi menunjukkan adanya hubungan yang positif dan signifikan antara keterampilan metakognitif dengan hasil belajarnya yang terlihat dari nilai koefisien korelasi sebesar 0,919 serta nilai sig. (2-tailed) sebesar 0,003. Hal tersebut menunjukkan bahwa korelasi keterampilan metakognitif dengan hasil belajar siswa pada materi hidrokarbon berada pada kategori sangat kuat yang menunjukkan bahwa siswa mampu menuliskan, menyusun serta membedakan berbagai struktur senyawa.  
PERBANDINGAN AKTIVITAS DAN HASIL BELAJAR MENGGUNAKAN MODEL PEMBELAJARAN SOMATIS AUDITORI VISUAL INTELEKTUAL (SAVI) BERBANTUAN BAHAN AJAR BERBASIS ANDROID DENGAN PRAKTIKUM Kartika Wahyuni; Amir, Hermansyah; Sura Menda Ginting
ALOTROP Vol. 8 No. 1 (2024): Penelitian Kimia dan Pembelajaran Kimia
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v8i1.34440

Abstract

This study aims to determine the differences in the activities and learning outcomes of students who apply the somatic, auditory, visual, intellectual (SAVI) learning model assisted by android-based teaching materials and practicum. This study uses a quasi-method with research samples of experimental class I used android-based teaching materials and experimental class II applying practicum. The method of data collection was carried out by conducting tests in measuring learning outcomes while the observation sheet of student activities in measuring learning activities. The results of observing the learning activities of students in the experimental class 1 and 2, respectively, are 69% and 74%, both in the active criteria. The cognitive learning outcomes of experimental class 1 and 2 students are 75.76 and 79.61, both in good criteria. There is a significant difference between learning activities and student learning outcomes who are taught by the application of the SAVI learning model assisted by android-based teaching materials and practicum. The results of the study can be concluded that in general the activities and learning outcomes of students with the application of the SAVI learning model with practicum are higher than those with the help of android-based teaching materials.
PENERAPAN MODEL PEMBELAJARAN GROUP INVESTIGATION (GI) DENGAN BANTUAN MEDIA PEMBELAJARAN BERBASIS ANIMASI UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KREATIF SISWA Hizkia Mahezra Agustin; Rina Elvia; Rohiat, Salastri
ALOTROP Vol. 8 No. 1 (2024): Penelitian Kimia dan Pembelajaran Kimia
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v8i1.34441

Abstract

Penelitian bertujuan untuk meningkatkan kemampuan berpikir kreatif siswa dengan menerapkan model pembelajaran group investigation menggunakan bantuan media animasi. Penelitian ini merupakan penelitian tindakan kelas (PTK). Menggunakan kelas XII IPA 4 MAN 1 Kota Bengkulu tahun ajaran 2022/2023 sebagai subjek dari penelitian. Dalam pelaksanaannya, penelitian ini dilaksanakan dengan menggunakan 3 siklus yang terdiri dari 4 tahap yaitu (1) Perencanaan, (2) Pelaksanaan, (3) Observai dan (4) Refleksi. Pengumpulan data dalam penelitian ini digunakan lembar observasi , tes dan lembar respon siswa. Dari data hasil analisis yang dilakukan model pembelajaran dan media yang digunakan dapat membantu meningkatkan kemampuan berpikir kreatif siswa dengan peningkatan hasil pada setiap siklus, pada siklus I 56,2%, siklus II 75% dan siklus III 81,2%. Data hasil observasi siswa menunjukan terjadi peningkatan terhadap aktifan siswa pada setiap siklusnya, siklus I memiliki skor penilaian 13, siklus II 14,5 dan siklus III 17,8. Aspek kemampuan berpikir kreatif yang mengalami peningkatan yang siginifikan adalah aspek flexibility dan originality
PENGEMBANGAN MODUL ELEKTRONIK MENGGUNAKAN 3D PAGEFLIP PROFESSIONAL BERBASIS EDMODO PADA MATA PELAJARAN KIMIA Oktavia, Yessi Rahma; Elvinawati, Elvinawati; Rohiat, Salastri
ALOTROP Vol. 8 No. 1 (2024): Penelitian Kimia dan Pembelajaran Kimia
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v8i1.34442

Abstract

[The Development of Electronic Module using Edmodo Based-3D Pageflip Professional on Chemistry Subject] This research was an R and D research of developing electronic module using Edmodo-based 3D Pageflip Professional on chemistry subject. The research aimed to determine the feasibility and students’ responses on the developed module. The development process was based of ADDIE model (Analysis, Design, Develop, Implementation, Evaluation). The research was conducted in SMAN 09 (Senior highschool) science class grade IX (MIPA A) on a small scale group of students.. The research results show that (1) the developed product which is the electronic module is feasible as learning material with the feasibility score on media and content were 80,43% and 81,33 % respectively; (2) the students’ response on the module developed show possitive feedback with 80,69% response stated that the module is interesting and helpful in learning chemistry subject.
PENGEMBANGAN PENUNTUN PRAKTIKUM BERBASIS LINGKUNGAN PADA MATERI REAKSI EKSOTERM DAN ENDOTERM UNTUK KELAS XI MIPA SMAN 8 BENGKULU UTARA Apriliana, Laila Dwi; I Nyoman Candra; Wiwit, Wiwit
ALOTROP Vol. 8 No. 1 (2024): Penelitian Kimia dan Pembelajaran Kimia
Publisher : University of Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/alo.v8i1.34456

Abstract

[The development of environmental based-labwork instruction book on the topic of exotherm and endotherm reaction for student of Class XI of Science, SMAN 8 Bengkulu Utara]The type of this research is a Research and Development study developing an environmental based - labwork instruction book on exothermic and endothermic reaction topic with the aim of knowing the feasibility and response of students to the labwork instruction book and to determine the psychomotor (skills) score ​​of students using it. This research uses the ADDIE development model (Analysis, Design, Development and Evaluation). This research was conducted at SMAN 8 Bengkulu Utara with research subjects namely 9 students in class XI MIPA 3 for small-scale trials and 28 students in class XI MIPA 1 for large-scale trials. Based on the research results, it is found that (1) The developed environment-based labwork instruction book was suitable to be applied with the percentage of material and media validity respectively were 92.5% and 93.3% with very valid criteria (2) Student responses to the labwork instruction guidebook fell in the very good criteria from the aspects of content quality, language and usefulness with an average percentage was 92.2% on a small scale and 92.7% on a large scale. (3) The psychomotor assessment of students using the labwork instruction book fell in a good criteria, 71.0% for the assessment aspect of the preparation stage; 74.8% for assessment of the implementation stage and 84.7% for assessment of the final stage, with an average percentage of 76.8%.

Page 19 of 22 | Total Record : 218

 17   18   19   20   21 

Filter by Year

2017 2025


Reset
Filter By Issues
All Issue Vol. 9 No. 1 (2025): Jurnal Pendidikan dan Ilmu Kimia Vol. 8 No. 2 (2024): Alotrop 2024 Vol. 8 No. 1 (2024): Penelitian Kimia dan Pembelajaran Kimia Vol. 7 No. 2 (2023): Alotrop 2023 Vol. 7 No. 1 (2023): Alotrop 2023 Vol. 6 No. 2 (2022): Pembelajaran Abad 21 Vol 6, No 1 (2022) Vol 5, No 2 (2021) Vol 5, No 1 (2021) Vol 4, No 2 (2020) Vol 4, No 1 (2020) Vol 3, No 2 (2019) Vol 3, No 1 (2019) Vol 2, No 2 (2018) Vol 2, No 1 (2018) Vol 1, No 2 (2017) Vol 1, No 1 (2017) More Issue