Materi usaha dan energi dianggap mudah bagi siswa, tetapi dalam beberapa penelitian menunjukkan bahwa masih banyak siswa yang mengalami kesulitan. Untuk membantu siswa, diperlukan media pembelajaran yang menarik untuk mempelajari materi tersebut yaitu mobile learning berbasis android. Mobile learning ini berisi kompetensi, materi, soal dan pembahasan, video dan latihan interaktif. Metode penelitian yang digunakan adalah metode Research and Development dengan proses pengembanganya menggunakan model ADDIE (Analysis, Design, Development, Implementation dan Evaluation). Penelitian pengembangan model ADDIE yang dilakukan hanya sampai tahap Development karena tujuan penelitian ini hanya sebatas mengembangkan aplikasi yang valid berdasarkan penilaian validator. Instrumen pengumpulan data terdiri dari lembar validasi ahli media dan lembar validasi ahli materi yang diberikan kepada 2 ahli media dan 2 ahli materi. Hasil validasi ahli media sebesar 90 % dan ahli materi sebesar 84%. Kesimpulan penelitian pengemembangan ini adalah mobile learning berbasis android pada materi usaha dan energi sangat layak digunakan dalam pembelajaran fisika
The measurement of light on the Sun-earth system model has been done using a logger pro and light sensor. The purpose of this research is investigating the relationship between Sun declination with the Sunlight intensity on variety earth model latitude. By Lambert’s Cosine Law, the light intensity that falls on a certain angle can be calculated. On the summer solstice, the highest light energy that was measured on earth model surface occurred on 23.5 degrees north latitude. It was 129.264 candela. The highest light intensity on 23.5 degrees south latitude was 125.907 candela. It has happened on the winter solstice. The light intensity on the equator reaches the maximum compared to the other latitude on the vernal equinox and autumn equinox. There were 115.982 and 111.121 candela, respectively.
This study proposed to determine the effectiveness of the Learning Management System (LMS) assisted Schoology on parabolic material in student learning outcomes at the SMK Bhakti Indonesia Medika Pacitan. The study was a pre-experimental design with one group pre-test post-test design. The sample of this research was students of X SMK Kesehatan Bhakti Indonesia Medika Pacitan. The data analysis in this study used the One-Sample T-Test with SPSS 23. Based on the result, the average percentage of increase in student learning outcomes using LMS assisted schoology on parabolic material was 25%. By using the One Sample T-Test the sig. (2-tailed) Value of 0,000 < 0,05, statistically, there was a difference between before and after using the LMS-assisted Schoology. The usability questionnaire showed that the average for each aspect is 79% (usefulness), 67.2% (ease of use), 67.50% (ease of learning), and 64% of students are satisfied (satisfaction).
Penulis korespondensi Informasi artikel ABSTRAKSejarah artikel: Dikirim Revisi Diterima Karakteristik CO2 saat gerhana matahari 83,16% di Yogyakarta telah dilakukan. Penelitian ini bertujuan untuk mengetahui proses perubahan kadar CO2 pada saat gerhana matahari. Penelitian ini menggunakan metode eksperimen. Pengumpulan data dilakukan dengan bantuan sensor CO2 Logger Pro. Metode analisis penelitian ini menggunakan analisis grafik. Dari hasil eksperimen diperoleh bahwa rata-rata kadar CO2 meningkat dari 659,0932 ppm menjadi 662,632 ppm, dan setelah terjadi gerhana matahari rata-rata kadar CO2 kembali turun menjadi 654,702 ppm.This is an open access article under the CC-BY-SA license
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