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Empiricism Journal
Published by Lembaga Penelitian dan Pemberdayaan Masyarakat
ISSN : -     EISSN : 27457613     DOI : https://doi.org/10.36312/ej
Core Subject : Science, Education, Social,
Chemistry Education Languange, Linguistic, Communication & Media Mathematics Social Sciences Other
Empiricism Journal was published by Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM). This journal publishes empirical original research papers in the field of education and natural science.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 13 Documents
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Search results for , issue "Vol. 2 No. 2: December 2021" : 13 Documents clear
Model Pembelajaran Inquiry Terbimbing Terintegrasi Laboratorium Virtual untuk Meningkatkan Pemahaman Konsep dan Keterampilan Metakognitif Siswa Muhali, Muhali; Asy'ari, Muhammad; Sukaisih, Roniati
Empiricism Journal Vol. 2 No. 2: December 2021
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/ej.v2i2.594

Abstract

Penelitian ini bertujuan untuk mengetahui efektivitas model pembelajaran inquiry terintegrasi laboratorium virtual terhadap pemahaman konsep dan keterampilan metakognitif siswa. Quasi eksperimen dengan nonequivalent control group design digunakan dalam penelitian ini. Sampel penelitian ini adalah 56 siswa yang terbagi ke dalam 2 (dua) kelas parallel yang dipilih menggunakan cluster random sampling technique. Instrumen yang digunakan berupa tes pemahaman konsep dan instrumen lembar penilaian (LP) keterampilan metakognitif yangtelah dinyatakan valid dan reliabel. Data penelitian dianalisis secara deskriptif menggunakan persamaan n-gain dan statistic dengan bantuan software IBM SPSS 23 Version. Hasil penelitian menunjukkan bahwa pemahaman konsep siswa pada kelompok eksperimen (mean= 79,19; n-gain= 0,76 dengan kategori tinggi) lebih baik dari kelompok kontrol (mean= 43,08; n-gain= 0,36 dengan kategori sedang) dan berbeda secara signifikan (p < 0.05). Keterampilan metakognitif siswa menunjukkan hal serupa, kelompok eksperimen (pertemuan I= 54,69 (pertemuan II= 67,86; pertemuan III= 79,24) ditemukan lebih baik dari kelompok control (pertemuan I= 46,09; pertemuan II= 53,01; dan pertemuan III= 55,13). Hasil penelitian menunjukkan model pembelajaran inquiry terbimbing terintegrasi laboratorium virtual efektif dalam meningkatkan pemahaman konsep dan keterampilan metakognitif siswa dalam pembelajaran kimia materi larutan penyangga. Virtual Laboratory Integrated Guided Inquiry Learning Model to Improve Students' Concept Understanding and Metacognitive Skills Abstract This study aims to determine the effectiveness of the virtual laboratory integrated guided-inquiry learning model on students' concept understanding and metacognitive skills. Quasi experimental with nonequivalent control group design was used in this study. The sample of this study was 56 students who were divided into 2 (two) parallel classes which were selected using the cluster random sampling technique. The instruments used were in the form of a concept understanding test and a metacognitive skill assessment sheet (LP) which had been declared valid and reliable. The research data were analyzed descriptively using the n-gain equation and statisticaly with the help of IBM SPSS 23 Version software. The results showed that students' concept understanding in the experimental group (mean = 79.19; n-gain = 0.76 in the high category) was better than the control group (mean = 43.08; n-gain = 0.36 in the medium category) and significantly different (p < 0.05). Students’ Metacognitive skills showed the same thing, the experimental group (meeting I = 54.69; meeting II = 67.86; meeting III = 79.24) was found to be better than the control group (meeting I = 46.09; meeting II = 53, 01, and meeting III = 55.13). The results showed that the virtual laboratory integrated guided-inquiry learning model was effective in improving students’ concept understanding and metacognitive skills in buffer solution chemistry learning subject.
Pengaruh Model Siklus Belajar Hipotesis-Deduktif terhadap Hasil Belajar Matematika Siswa SMA Rahmawati, Helmi; Supratman, Moh.; Aulan, Zema Yuliana
Empiricism Journal Vol. 2 No. 2: December 2021
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/ej.v2i2.599

Abstract

Penelitian ini bertujuan untuk mendeskripsikan pengaruh model siklus belajar hipotesis-deduktif terhadap hasil belajar matematika siswa. Penelitian ini merupakan penelitian eksperimen semu dengan pretest-posttest control group design. Sampel penelitian ini melibatkan 66 siswa di dua kelas pada Madrasah Aliyah Darul Mahmudien NW Lombok Tengah sebagai sampel. Kelompok eksperimen (29 siswa) dan kelompok control (37 siswa) dipilih menggunakan teknik cluster random sampling. Data hasil belajar siswa dianalisis sesara statistic menggunakan independent t-test dengan bantuan software IBM SPSS versi 23. Hasil penelitian menunjukkan bahwa model siklus belajar hipotesis-deduktif berpengaruh signifikan (p < 0,05) terhadap hasil belajar matematika siswa. Temuan tersebut didukung hasil skor rata-rata kelompok eksperimen (mean= 81,0345) yang lebih tinggi dari kelompok control (mean= 76,9730) sehingga dapat disimpulkan bahwa model siklus belajar hipotesis-deduktif berpengaruh signifikan terhadap hasil belajar matematika siswa. The Effect of Hypothetical-Deductive Learning Cycle Model on Mathematics Learning Outcomes of High School Students Abstract This study aims to describe the effect of the hypothetical-deductive learning cycle model on students' mathematics learning outcomes. This research is a quasi-experimental research with pretest-posttest control group design. The sample of this study involved 66 students in two classes at Madrasah Aliyah Darul Mahmudien NW Central Lombok as a sample. The experimental group (29 students) and the control group (37 students) were selected using cluster random sampling technique. Data on student learning outcomes were analyzed statistically using an independent t-test with the help of IBM SPSS version 23 software. The results showed that the hypothesis-deductive learning cycle model had a significant effect (p < 0.05) on students' mathematics learning outcomes. This finding is supported by the average score of the experimental group (mean = 81.0345) which is higher than the control group (mean = 76.9730) so it can be concluded that the hypothetical-deductive learning cycle model has a significant effect on students' mathematics learning outcomes.
Optimasi Biaya Bahan Bakar Pembangkit Listrik Tenaga Diesel Menggunakan Metode Pendekatan Simplex Jaya, Ahmad
Empiricism Journal Vol. 2 No. 2: December 2021
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/ej.v2i2.1713

Abstract

Optimasi biaya bahan bakar pada pembangkit merupakan hal yang sangat penting untuk mengoptimalkan pemakaian sumber daya alam dan mengurangi dampak lingkungan. Fokus penelitian ini akan melakukan analisis biaya bahan bakar pada pembangkit listrik tenaga diesel di PT Sumber Rejeki Power menggunakan metode pendekatan simplex. Metode pendekatan simplex digunakan untuk mencari solusi optimal dalam hal pengaturan bahan bakar pada pembangkit yaitu dengan menganalisa data, serta perhitungan untuk mencapai hasil yang terukur dan menghasilkan sebuah pengambilan keputusan yang baik sehingga memiliki perkiraan perhitungan yang akurat untuk memperoleh minimum biaya. Hasil dari analisis ini yaitu metode simplex dapat diterapkan dalam optimasi pembangkit pada PT Sumber Rejeki Power dalam meminimasi penggunaan bahan bakar dari keterbatasan pembangkit yang dimiliki dan Excel’s Solver dapat membantu proses perhitungan minimasi bahan bakar secara cepat dan akurat sehingga penggunaan minimal bahan bakar yang diperoleh peneliti yaitu sebesar 133.843 Liter, dengan penggunaan sebelumnya 137.875 Liter dan didapatkan selisih sebesar 4032 Liter/hari. Optimization of Fuel Costs for Diesel Power Generation Using the Simplex Approach Case Abstract Optimizing fuel costs in power plants is very important to optimize resource use and reduce environmental impact. The focus of this research will be to analyze the cost of fuel in a diesel power plant using the simplex approach. The Simplex approach method is used to find the optimal solution in terms of setting fuel at the plant, namely by analyzing data, as well as calculations to achieve measurable results, resulting in a good decision making so that it has an accurate calculation estimate to obtain a minimum cost. The results of this analysis the simplex model can be applied in optimizing generators at PT Sumber Rejeki Power in minimizing fuel use from the limitations of owned generators and Excel's Solver can help the calculation process of minimizing fuel in a fast and accurate cell so that the minimum use of fuel is obtained by the researcher, namely fuel cells. 133,843 Liters, with the use of cells 137,875 Liters and obtained a difference of 4032 Liters/day.

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