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All Journal Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Jurnal Penelitian dan Pengembangan Pendidikan Prosiding Seminar Biologi Jurnal Inovasi Pendidikan IPA Jurnal Penelitian Pendidikan IPA (JPPIPA) INKUIRI : Jurnal Pendidikan IPA Indonesian Journal of Chemistry JKPK (Jurnal Kimia dan Pendidikan Kimia) Bulletin of Chemical Reaction Engineering & Catalysis Journal of Environment and Sustainability Education
Bakti Mulyani
Universitas Sebelas Maret
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Materials Science & Nanotechnology Mathematics Physics Other

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Penerapan model pembelajaran inkuiri terbimbing untuk meningkatkan sikap ilmiah dan prestasi belajar kimia siswa Murningsih, Ira Maya Tri; Masykuri, Mohammad; Mulyani, Bakti
Jurnal Inovasi Pendidikan IPA Vol 2, No 2: October 2016
Publisher : Faculty of Mathematics and Natural Sciences, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (544.658 KB) | DOI: 10.21831/jipi.v2i2.11196

Abstract

Penelitian ini bertujuan untuk meningkatkan sikap ilmiah dan prestasi belajar siswa menggunakan model pembelajaran Inkuiri Terbimbing pada materi pokok kelarutan dan hasil kali kelarutan kelas XI MIPA 3 SMA Negeri 5 Surakarta tahun ajaran 2015/2016. Penelitian ini merupakan Penelitian Tindakan Kelas yang terdiri dari dua siklus. Subjek penelitian adalah siswa kelas XI MIPA 3 SMA Negeri 5 Surakarta tahun pelajaran 2015/2016 yang terdiri dari 30 siswa. Objek penelitian adalah sikap ilmiah siswa dan prestasi belajar kimia siswa. Sumber data adalah siswa dan guru. Teknik pengumpulan data melalui metode observasi, wawancara, dokumen/arsip, angket dan tes. Teknik analisis yang digunakan adalah analisis deskriptif. Berdasarkan hasil penelitian didapatkan bahwa pencapaian sikap ilmiah pada siklus I sebesar 60% dan pada siklus II menjadi 93%. Peningkatan prestasi belajar aspek pengetahuan pada siklus I diperoleh ketuntasan belajar sebesar 63% dan pada siklus II menjadi 93%. Pada prestasi belajar siswa aspek sikap dan aspek keterampilan ketercapaian ketuntasan siswa pada siklus I sebesar 100%,sehingga tidak dilanjutkan ke siklus II karena semua indikator sudah terpenuhi.Kata Kunci: inkuiri terbimbing, kelarutan dan hasil kali kelarutan, penelitian tindakan kelas, prestasi belajar, sikap ilmiah Implementation of Guided Inquiry Model to Improve Behaviour Scientific and Student’s Chemistry Learning Achievement AbstractThe aims of the research were to improve scientific behaviour and student’s learning achievement by implementing guided inquiry model on primary material of solubility and solubility product at XI MIPA 3 students of SMA Negeri 5 Surakarta in the academic year of 2015/2016. This research was a Classroom Action Research (CAR) which was held in two cycles. The research subject was the students of class XI MIPA 3 at SMA Negeri 5 Surakarta in the academic year of 2015/2016 consisted of 30 students. The object of research was the behavior scientific and student’s chemistry learning achievement. Source of data were students and teacher. Data was obtained through observations, interviews, document, questionnaires, and test. The data were analyzed using technique of qualitative descriptive analysis. The result of the research can be seen from cycle I the percentage of student’s scientific behaviour was 60% and increased to 93% in the cycle II. Improved learning achievement on knowledge aspect from 63% in cycle I to 93% in cycle II. Attitude aspect and skill aspect, the improvement has reached 100%, so it was not continued to cycle 2 since all off the indicators have been accomplished before.Keywords: guided inquiry, solubility and solubility product, classroom action research, learning achievement, scientific behaviour
PENERAPAN PENDEKATAN SCIENCE, ENVIRONMENT, TECHNOLOGY AND SOCIETY (SETS) BERBANTUAN MACROMEDIA FLASH DILENGKAPI ARTIKEL ILMIAH TERHADAP PENINGKATAN PRESTASI BELAJAR SISWA PADA MATERI PERUBAHAN FISIKA DAN KIMIA Nurcahyani A, Nunuk; Mahardiani, Lina; Mulyani, Bakti
Prosiding Seminar Biologi Vol 9, No 1 (2012): Seminar Nasional IX Pendidikan Biologi
Publisher : Prodi Pendidikan Biologi FKIP UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (281.4 KB)

Abstract

ABSTRAK   The aim of this research is to know the influence of Science Environment Technology and Society (SETS) learning approach using macromedia flash completed with scientific articles toward the improvement of  the student achievement on the subject matter of physical and chemical changes for seventh grade students SMP 14 Surakarta academic year of 2010/2011. This research used an experiment method using Randomize Control Group Pretest Postest Design. The population of this research was student of seventh grade of SMP 14 Surakarta in academic year 2010/2011. The sample consists of 2 classes, VII D as an experiment class (SETS learning approach using macromedia flash completed scientific articles) and VII E as the control class (conventional method) that obtained by cluster random sampling technique. The data of this research are collected by objective test to measure the cognitive achievement and questioner test to determine the affective achievement. Technique of analysis data used was t-test on the right. The result of this research showed that learning approach of SETS using macromedia flash completed scientific articles is more effective than conventional method toward the student achievement on the subject matter of Physical and Chemical Changes for seventh grade students even semester in SMP 14 Surakarta academic year of 2010/2011. It showed from the result of t-test that tobs > ttable are 3,63 > 1,67 for cognitive aspect achievement and 2,91 > 1,67 for affective aspect achievement. Furthermore, based on the average of cognitive achievement of the experiment class (21,611) was higher than control class (16.361). This result was also has the same value for affective achievement where for the experiment class (94,556) was higher than control class (88,111)   Kata Kunci: SETS, Macromedia flash, scientific article, Physical and Chemical  Changes.
Socio-Scientific Issues Using Two-Tier Instruments Based on Literacy Analysis Fadhilah, Zahra Ayu; Ulfa, Maria; Indriyanti, Nurma Yunita; Yamtinah, Sri; Shidiq, Ari Syahidul; Mulyani, Bakti; Masykuri, Mohammad
Jurnal Penelitian dan Pengembangan Pendidikan Vol. 7 No. 3 (2023): October
Publisher : LPPM Undiksha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jppp.v7i3.63763

Abstract

Chemical literacy is important for someone to have to understand scientific problems that occur in everyday life so that they can choose wise decisions in solving them. The objectives to be achieved in this study are to analyze the students' chemical literacy skills on acid-base material using a two-tier multiple-choice instrument SSI based. The research design used is a descriptive qualitative method. The sample in this study was taken or selected using a purposive sampling technique. Data collection techniques are used by researchers in the form of tests and interviews. The steps taken to analyze the data are data collection, data reduction, data presentation, and drawing conclusions. The results of this study indicate that 1. The results of the students' chemical literacy test on acid-base material showed that as many as 15% of students were in the high category, 62% of the students were in the medium category, and 23% of the students were in a low category. 2. Students' chemical literacy was sufficient in the aspect of content (79%), context (70%), HOTS (69%), and attitudes (66%). The sub-indicator that students mastered the most in context indicators was analyzing the strategies and benefits of chemical applications. In the HOTS indicator, the students' most dominant skills are asking questions and seeking information on chemical issues. The attitude indicator shows the lowest achievement among other indicators due to the lack of student interest in issues related to chemistry.
Hexagonal TiO2/SiO2 Porous Microplates for Methylene Blue Photodegradation Ulfa, Maria; Anggreani, Cindy Nur; Mulyani, Bakti; Sholeha, Novia Amalia
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 1 Year 2024 (April 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20120

Abstract

Hexagonal TiO2/SiO2 Porous Microplates have been successfully synthesized by incorporation of Ti precursors into SiO2 synthesized from Si precursors in a gelatin-CTAB mixture via the hydrothermal method. The prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), EDX, nitrogen adsorption-desorption and Fourier transform infrared spectroscopy (FTIR). The sample has a surface area of 735 m2/g, pore volume of 0.67 cc/g, and pore diameter of 3.2 nm, according to the results of the characterization of hexagonal TiO2/SiO2 porous microplates. The transformation of SiO2 microspheres into hexagonal TiO2/SiO2 porous microplates is revealed by a microparticle size increase of 84% and the transition of Si−O bonds into Ti−O and Si−O as measured by FTIR. The photocatalytic activity of hexagonal TiO2/SiO2 porous microplates resulted in 81.15% photodegradation of methylene blue under UV light irradiation within 60 min, which was 21 % better than SiO2. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Characteristics analysis of integrated science question items with the rasch model Yamtinah, Sri; Ashadi, Ashadi; Mulyani, Bakti; Utami, Budi; Kristyasari, Marantika Lia
Journal of Environment and Sustainability Education Vol. 1 No. 1 (2023)
Publisher : Education and Development Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62672/joease.v1i1.1

Abstract

This study aims to analyze the characteristics of the Integrated Science question item. This is quantitative descriptive research. The research subjects were 90 students of class VIII Junior High School in the high, medium, and low categories in Surakarta City. The characteristics of the items were analyzed using the Winstep program with the Rasch Model. Based on data analysis, the results obtained are: 1) the validity of conformity level of the items is valid; 2) the reliability value of the students was 0,79 which was sufficient, the reliability of the items was 0,93 which was very good, and the reliability between the students and the items (Alpha Cronbach) was 0,81 which was very good; 3) the value of separation item > value separation of students; 4) the distribution of the difficulty level of the questions is generally in the medium category; and 5) the difference power of the questions in the very good category is 35%, 25% in the good, 30% in the moderate, and 10% in the unable to distinguish category. Thus, it can be concluded that the analysis of the characteristics of the Integrated Science question items using the Rasch Model is considered good.
The Effect of a Culturally Responsive Teaching Approach Integrated with Comics with the Think Talk Write Learning Model on Students’ Learning Activities and Achievement in Basic Law of Chemistry Topics Khoirunnisa, Afifah; Mulyani, Bakti; Susanti Vh, Elfi; Yamtinah, Sri; Masykuri, Mohammad; Ulfa, Maria; Shidiq, Ari Syahidul
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 8, No 3 (2023): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v8i3.80152

Abstract

This study examines the impact of integrating the Culturally Responsive Teaching (CRT) approach with comic-based learning and the Think Talk Write (TTW) model on student learning activities and achievements in fundamental chemistry. Focusing on chemical reactions (combustion, rusting, fermentation, etc.) and laws (Dalton’s, Proust’s, Gay-Lussac’s, etc.), the research adopts a pretest-posttest non-equivalent control group design in a quasi-experimental setting with 36 students divided equally between control and experimental groups. Comparative analysis shows that the experimental group outperforms the control group in learning activities and achievements. The experimental group, subjected to the CRT and TTW model, demonstrates significantly higher engagement in learning activities. The N-Gain Score test reveals a notable increase in learning effectiveness—56.40% for the experimental group versus 29.69% for the control group, indicating the latter's relative ineffectiveness. In learning achievement, the experimental group exhibits a considerable improvement of 67.20%, while the control group shows a moderate gain of 50.12%. The results of the Multivariate Analysis of Variance (MANOVA) test, with the positive effect of integrating CRT with comics and the TTW model on student learning activities and achievements. The study highlights the efficacy of this approach in enhancing students' understanding and engagement in chemistry, suggesting a promising direction for future educational practices.
Impacts of The POGIL Learning Model Combined With a SETS Approach on Chemical Literacy and Science Process Skills in The Context of Buffer Solutions Puspitasari, Putri Anggun; Hastuti, Budi; Mulyani, Bakti
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 9, No 1 (2024): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v9i1.85057

Abstract

This study evaluates the impact of the Process Oriented Guided Inquiry Learning (POGIL) model combined with a Science-Technology-Society-Environment (SETS) approach on chemical literacy and science process skills within buffer solutions. Employing a quasi-experimental design with a nonequivalent control group, the research involved 71 students divided into experimental and control groups. Cluster random sampling was utilized for participant selection, and Multivariate Analysis of Variance (MANOVA) was applied to test the hypotheses. The findings reveal a significant effect of the POGIL learning model integrated with a SETS approach on simultaneously enhancing students' chemical literacy and science process skills. This outcome is substantiated by the MANOVA results, which indicate a significance level of 0.000, falling below the threshold of 0.05, thereby leading to the rejection of the null hypothesis (H0). Notably, the experimental group demonstrated significant improvements compared to the control group. Chemical literacy in the experimental group reached 79.90%, significantly higher than the 62.53% observed in the control group. Additionally, the N-gain scores for the experimental and control groups were 0.70 and 0.32, respectively, categorized as high and medium. Furthermore, the percentages of science process skills were 91.61% in the experimental group and 82.37% in the control group, both in the very good category. These results underscore the effectiveness of combining POGIL with a SETS approach in elevating chemical literacy and science process skills, suggesting this method is a potent educational tool in chemical education.
Hubungan Konsentrasi Belajar dan Berpikir Kreatif Dengan Hasil Belajar Siswa Kelas VIII SMP pada Materi Pesawat Sederhana Agustin, Yesi; Mulyani, Bakti; Sarwanto, Sarwanto
INKUIRI: Jurnal Pendidikan IPA Vol 13, No 3 (2024): INKUIRI: Jurnal Pendidikan IPA
Publisher : Magister Pendidikan Sains Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/inkuiri.v13i3.80186

Abstract

Kompetensi abad 21 menuntut kemampuan dan keterampilan siswa, keterampilan yang saat ini diperlukan diantaranya adalah berpikir kreatif. Penelitian ini bertujuan untuk mengetahui ada atau tidaknya hubungan yang positif dan signifikan antara konsentrasi belajar dan berpikir kreatif dengan hasil belajar secara parsial dan simultan. Penelitian ini adalah jenis penelitian kuantitatif dengan metode korelasional. Populasi pada penelitian ini yaitu semua siswa kelas VIII SMP Negeri 1 Baki Sukoharjo Tahun Ajaran 2022/2023. Teknik pengambilan sampel yaitu cluster random sampling. Sampel penelitian ini adalah siswa kelas VIII G dan VIII H. Pengumpulan data dengan teknik survei untuk konsentrasi belajar, berpikir kreatif dan hasil belajar afektif serta lembar tes untuk hasil belajar kognitif dan psikomotor. Analisis data menggunakan uji korelasi sederhana dan berganda dengan taraf signifikansi 5%. Berdasarkan penelitian dapat disimpulkan bahwa terdapat hubungan yang positif dan signifikan antara konsentrasi belajar dan berpikir kreatif dengan hasil belajar baik secara parsial atau simultan. Derajat hubungan antar variabel independen dengan variabel dependen baik secara parsial atau simultan berdasarkan nilai koefisien korelasi hasilnya menunjukan bahwa hubungan yang terbentuk termasuk pada kategori hubungan yang sangat kuat. Hasil pembahasan pada penelitian ini mengandung implikasi agar siswa meningkatkan konsentrasi belajar dan kemampuan berpikir kreatif agar hasil belajar IPA yang didapatkan optimal.
Pengaruh Model Pembelajaran Inkuiri Terbimbing terhadap Keterampilan Proses Sains Siswa Kelas VIII Materi Pesawat Sederhana: The Influence of the Guided Inquiry Learning Model on the Science Process Skills of Class VIII Students with Simple Plane Material Ristiani, Nia Pratama; Mulyani, Bakti; Supurwoko
Edu-Sains: Jurnal Pendidikan Matematika dan Ilmu Pengetahuan Alam Vol. 14 No. 1 (2025): Januari 2025
Publisher : Universitas Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/jmpmipa.v14i1.34625

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran inkuiri terbimbing terhadap keterampilan proses sains peserta didik kelas VIII SMPN 4 Karanganyar pada materi pesawat sederhana. Penelitian ini termasuk jenis penelitian kuasi eksperimen dengan desain penelitian non-equivalent control group. Sampel dalam penelitian ini adalah kelas VIII B sebagai kelas eksperimen menerapkan model inkuiri terbimbing dan kelas VIII H sebagai kelas kontrol. Teknik pengambilan sampel menggunakan cluster random sampling. Teknik pengumpulan data menggunakan tes pilihan ganda keterampilan proses sains dengan indikator yang meliputi aspek mengamati, mengelompokkan, menafsirkan, meramalkan,  mengajukan pertanyaan dan aspek merumuskan hipotesis untuk keterampilan proses sains dasar, merencanakan percobaan, menggunakan alat/bahan, menerapkan konsep dan berkomunikasi untuk keterampilan proses sains terpadu. Uji hipotesis yang digunakan adalah uji t. Penelitian ini dapat disimpulkan bahwa terdapat pengaruh penggunaan model pembelajaran inkuiri terbimbing terhadap keterampilan proses sains siswa kelas VIII SMP. Didapatkan nilai Sig. 0,000 kurang dari 0,05 sehingga H0 ditolak yang artinya terdapat pengaruh model inkuiri terbimbing dalam meningkatkan keterampilan proses sains peserta didik. Selain itu dilihat dari perbedaan nilai n-gain, dimana kelas eksperimen memperoleh nilai n-gain sebesar 0,56 dengan kategori sedang. Implikasi dari penelitian ini menunjukkan bahwa penerapan model pembelajaran inkuiri terbimbing memiliki pengaruh positif terhadap peningkatan keterampilan proses sains siswa kelas VIII SMP. Oleh karena itu, penerapan model pembelajaran inkuiri terbimbing dapat dijadikan alternatif yang baik dalam upaya peningkatan kualitas pembelajaran sains di sekolah, terutama dalam mengembangkan keterampilan proses sains yang penting bagi siswa. Diharapkan temuan ini dapat mendorong guru untuk lebih mengoptimalkan penggunaan model ini dalam kegiatan pembelajaran di kelas.
Metal Oxide for Fast Adsorption System in the Methylene Blue Removal Ulfa, Maria; Oktaviani, Sukmaningrum Latifah; Mulyani, Bakti; Sholeha, Novia Amalia
Indonesian Journal of Chemistry Vol 25, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.92617

Abstract

Rapid adsorption systems utilizing metal oxide-based materials represent a promising technology to address adsorption challenges, particularly for the effective removal of methylene blue (MB). These systems enhance the continuous MB elimination process by leveraging metal oxide (MO)-based adsorbents with high accessibility and optimized adsorption conditions. The preparation process involves selecting metal oxides with high surface area and strong adsorbate affinity, ensuring efficient interaction with MB. Process parameters such as adsorbent dosage, contact time, temperature, pH, initial concentration, waste volume, and pressure are modified to develop a rapid and sustainable system for MB removal. This configuration enables efficient application in water treatment, achieving faster and more effective MB degradation. Moreover, the scalability of MO-based adsorbents ensures low-cost production and broad applicability, further supporting sustainable waste management. This review critically evaluates experimental findings from various studies on MO-based materials in rapid adsorption systems, highlighting their potential for large-scale implementation in wastewater treatment to mitigate environmental pollution.
Co-Authors Afif, Hafid Al Agustin, Yesi Anggreani, Cindy Nur Ari Syahidul Shidiq Ashadi Budi Hastuti Budi Utami Elfi Susanti VH Fadhilah, Zahra Ayu Khoirunnisa, Afifah Lina Mahardiani Maria Ulfa Mohammad Masykuri Murningsih, Ira Maya Tri Nunuk Nurcahyani A Nurma Yunita Indriyanti Oktaviani, Sukmaningrum Latifah Puspitasari, Putri Anggun Ristiani, Nia Pratama Sarwanto Sarwanto Sholeha, Novia Amalia Sri Yamtinah Supurwoko