Papers by Winarto Silaban
This study aims to determine the effect of the Discovery Learning model on student learning outco... more This study aims to determine the effect of the Discovery Learning model on student learning outcomes in class XI SMA Negeri 1 Pematang Siantar. The type of research used in this research is quasi-experimental. The population in this study were all students of class XI MIPA, each of which consisted of 36 students. The sample in this study was class XI MIPA 6 as the control class using conventional methods and class XI MIPA 5 as the experimental class treated with the Discovery Learning model. The instruments used in the research were in the form of pre-test and post-test questions. The results of the study obtained the average value of the experimental class learning outcomes of 80.2 while the average value of learning outcomes in the control class was 75.8. Based on the results of hypothesis testing obtained from learning outcomes t-count> t-table or 2.204> 1.667. The conclusion from this research is that there is an influence of the application of the Discovery Learning model on student learning outcomes.
This study aims to determine the effect of the Discovery Learning model on student learning outco... more This study aims to determine the effect of the Discovery Learning model on student learning outcomes in class XI SMA Negeri 1 Pematang Siantar. The type of research used in this research is quasi-experimental. The population in this study were all students of class XI MIPA, each of which consisted of 36 students. The sample in this study was class XI MIPA 6 as the control class using conventional methods and class XI MIPA 5 as the experimental class treated with the Discovery Learning model. The instruments used in the research were in the form of pre-test and post-test questions. The results of the study obtained the average value of the experimental class learning outcomes of 80.2 while the average value of learning outcomes in the control class was 75.8. Based on the results of hypothesis testing obtained from learning outcomes t-count> t-table or 2.204> 1.667. The conclusion from this research is that there is an influence of the application of the Discovery Learning model on student learning outcomes.
This study aims to determine the effect of Macromedia Flash 8 media on student learning outcomes ... more This study aims to determine the effect of Macromedia Flash 8 media on student learning outcomes in the material on biodiversity and media feasibility and student responses. This type of research is quantitative and qualitative research. The collection of data used is a test and a questionnaire. For the feasibility test, Macromedia Flash 8 media received an average percentage of 92.25%, including the very feasible criteria used for the student response test, which received an average percentage of 86.2%, including very good criteria. Analysis of the test data to see the effect of Macromedia flash 8 media was carried out by hypothesis testing and the N-Gain test. The results of testing the hypothesis obtained a significant value of sig. (2-tailed) is 0.000 which is less than 0.05 proving that there is an influence of Macromedia Flash 8 media on student learning outcomes. If translated then Ha is accepted and Ho is rejected. The average value of the pre-test for the experimental class was 37.73 and the posttest was 77.73, while the average pre-test for the control class was 26.93 and the post-test was 31.86.
Jurnal Penelitian Pembelajaran Fisika, 2017
Penelitian ini bertujuan untuk mengetahui bagaimana penerapan model pembelajaran CTL (Contextual ... more Penelitian ini bertujuan untuk mengetahui bagaimana penerapan model pembelajaran CTL (Contextual teaching and learning) seberapa besar peningkatan aktivitas melalui penerapan model pembelajaran CTL pada materi pokok dinamika gerak lurus. Metode penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK) yang terdiri dari 4 tahapan, yaitu: perencanaan, pelaksanaan, pengamatan, dan refleksi. Subjek penelitian yang diambil adalah peserta didik kelas X MIA EI 2 SMA Negeri 6 Yogyakarta yang berjumlah 32 peserta didik. Hasil penelitian menunjukkan bahwa implementasi model pembelajaran CTL sudah sesuai sintaks yang diacu yaitu meliputi Tahap 1: Invitasi (Mengemukakan pengetahuan awal), Tahap 2: Eksplorasi (Menyelidiki dan menemukan konsep, melalui pengumpulan data), Tahap 3: Penjelasan dan solusi (Memberikan penjelasan dan solusi berdasarkan hasil observasi), Tahap 4: Pengambilan data (Membuat keputusan berdasarkan pengetahuan, informasi, dan keterampilan). Pada siklus I untuk nilai 3...
Tut Wuri Handayani : Jurnal Keguruan dan Ilmu Pendidikan
Penelitian ini bertujuan untuk untuk mengetahui pengaruh model Discovery Learning terhadap hasil ... more Penelitian ini bertujuan untuk untuk mengetahui pengaruh model Discovery Learning terhadap hasil belajar siswa pada kelas XI SMA Negeri 1 Pematang Siantar. Jenis penelitian yang digunakan dalam penelitian ini adalah quasi eksperimen. Populasi dalam penelitian ini yaitu seluruh siswa kelas XI MIPA yang masing-masing tiap kelasnya berjumlah 36 siswa. Sampel pada penelitian ini adalah kelas XI MIPA 6 sebagai kelas kontrol dengan menggunakan metode konvensional dan kelas XI MIPA 5 sebagai kelas eksperimen yang diberi perlakuan model Discovery Learning. Instrumen yang digunakan dalam penelitian yaitu berupa soal pre test dan post test. Hasil penelitian yang diperoleh nilai rata-rata pada hasil belajar kelas eksperimen 80,2 sedangkan nilai rata-rata hasil belajar pada kelas kontrol yaitu 75,8. Berdasarkan hasil pengujian hipotesis yang diperoleh dari hasil belajar thitung> ttabel atau 2,204 > 1,667. Kesimpulan dari penelian ini yaitu terdapat pengaruh penerapan model Discovery Lear...
Tut Wuri Handayani : Jurnal Keguruan dan Ilmu Pendidikan
Penelitian ini bertujuan untuk mengetahui pengaruh media macromedia flash 8 terhadap hasil belaja... more Penelitian ini bertujuan untuk mengetahui pengaruh media macromedia flash 8 terhadap hasil belajar siswa pada materi keanekaragaman hayati dan kelayakan media serta respon siswa. Jenis penelitian ini merupakan penelitian kuantitatif dan kualitatif. Pengumpulan data yang digunakan adalah tes dan angket. Untuk uji kelayakan media macromedia flash 8 mendapat persentase rata-rata 92,25% termasuk kriteria sangat layak digunakan untuk uji respon siswa mendapat persentase rata-rata 86,2% termasuk kriteria sangat baik. Analisis data tes untuk melihat pengaruh media macromedia flash 8 dilakukan dengan uji hipotesis dan uji N-Gain. Hasil pengujian hipotesis didapatkan nilai signifikan sig. (2-tailed) adalah 0,000 yaitu lebih kecil dari 0,05 membuktikan bahwa terdapat pengaruh media macromedia flash 8 terhadap hasil belajar siswa. Jika dijabarkan maka Ha diterima dan Ho ditolak. Nilai rata-rata pre-test kelas eksperimen sebesar 37,73 dan post-test sebesar 77,73 sedangkan nilai rata-rata pre-te...
SINASIS (Seminar Nasional Sains), Jul 1, 2020
JST (Jurnal Sains dan Teknologi)
Lake Toba is a lake located in Samosir Regency, North Sumatra Province with a surface area of 1,1... more Lake Toba is a lake located in Samosir Regency, North Sumatra Province with a surface area of 1,124 km2 (112,400 ha). Lake Toba is located at a geographical position 2°41′N 98°53′E / 2.68°N 98.88°E with an altitude of 995 above sea level. The purpose of this study was to determine water quality in terms of chemical, physical, and biological parameters, as well as the status of water quality in Lake Toba. Determination of the sample point using the "sample survey method" which is the method of taking the sample by dividing it into several segments or points that can represent the population. The method used in this study is a descriptive method with a quantitative approach. Based on the results of the study, it can be concluded that the quality of the waters of Lake Toba in Pangururan District is classified as not good, specifically nitrate, nitrite, and ammonia concentration. Those that are classified as good are temperature, pH, BOD5, O2, and COD. Water quality in...
World Journal of Advanced Research and Reviews
The islands of Sumatra and Sinabung are located southwest of the Sundaland Continent which is a c... more The islands of Sumatra and Sinabung are located southwest of the Sundaland Continent which is a convergence route between the Indian-Australian Plate that infiltrates to the west of the Eurasian/Sundaland Plate. The increase in activity of Mount Sinabung was preceded by large earthquakes to the west and south while the eruption of Mount Sinabung produced pyroclastics. The purpose of this study is to find out the analysis of coulomb stress from the Sumatra Island earthquake to the pyroclastic flow of Sinabung as data on volcanic disasters. This study used the coulomb stress method with coulomb 3.3. The earthquake data analyzed was Mw, depth, and focal mechanism. The results of the analysis in the form of the direction of the spread of stress and the value of increased coulomb stress in Sinabung in 2014-2016. Sinabung's positive stress coulomb value in 2014 was 0.113 bar with a positive coulomb stress spread angle of 90o against sinabung pyroclastic flow. Sinabung's positive s...
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Papers by Winarto Silaban