The number of verses of the Quran contained in the Qur'an, encouraging people to look for a way to get the exact clause in a short time. The science is an important knowledge, as Muslims we are obliged to study it with the Al-Quran as a guide. So that's how we get the verse about the science of the Quran with a quick, efficient and practical with a mobile application. Decision tree is a predictive model using a tree or hierarchical structure, this method can support mobile applications to be created. Because based decision very complex and global in the Quran, can be transformed into more simple and specific. C4.5 algorithm is a decision tree induction algorithm and is suitable to perform the classification process. The results of the percentage of successful applications created by using a decision tree that is 75.73%. From these results is known that the algorithm C4.5 and decision tree reasonably is well used in the classification process.
This research aims to describe the effect of the Group Investigation (GI) and Jigsaw cooperative learning model on learning achievement in Biology in terms of student achievement motivation. The design used in this study was the experimental squasi with 2 x 2 factorial design. Data collection was carried out by observation and tests, the subject of experimental research was students of class X MIPA. The sample selection is done by using purposive random sampling technique. The experimental class is X MIPA 1 and the control class is X MIPA 3. From the results of the study it was concluded that students who studied with the cooperative learning model of the Group Investigation (GI) type had higher learning achievement than students who studied with the Jigsaw type, students who had high achievement motivation had higher learning achievement than students who had low achievement motivation, and there was interaction between student achievement motivation and learning achievement Biology at State High School 1 Lahat.
Penelitian ini bertujuan untuk mengetahui pengaruh komunikasi internal terhadap efektivitas kinerja karyawan CV. Kawani Tekno Nusantara dengan menerapkan metode deskriptif dan verikatif, dengan pengumpulan data dari studi lapangan, angket dan studi pustaka. Dalam penelitian ini sampel yang digunakan adalah 32 karyawan. Data primer penelitian ini diperoleh dari kuesioner menggunakan skala likert dan dihitung dengan program SPSS versi 16. Teknik analisis data menerapkan teknik regresi linier sederhana dan korelasi antar variabel. Nilai korelasi hitung sebesar 0,592 artinya terdapat pengaruh komunikasi internal terhadap efisiensi karyawan CV. Kawani Tekno Nusantara tergolong sedang karena berkisar 0.40-0.599. Hasil uji hipotesis t menunjukkan besarnya t hitung terhadap t tabel 4,024 > 1,697 artinya terdapat pengaruh komunikasi internal terhadap efektivitas kinerja pegawai di CV. Kawani Tekno Nusantara. Berdasarkan perhitungan koefesien determinasi diperoleh R square 35% artinya efektifitas kinerja pegawai di CV. Kawani Tekno nusantara dipengaruhi oleh komunikasi internal sebesar 35%. Hambatan yang terjadi di CV. Kawani tekno nusantara adalah informasi yang disampaikan atasan kepada pegawai kurang dapat diterima dengan baik yang mengakibatkan terjadinya kesalahan komunikasi. Solusi yang disarankan agar pegawai lebih memahami dengan detail informasi yang telah disampaikan atasan, kemudian memastikan kembali atas informasi yang sudah disampaikan.
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