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All Journal CommIT (Communication & Information Technology) Jurnal Akademika Kimia
Bayu Riyadi, Bayu
Jurusan Teknik Informatika, Fakultas Ilmu Komputer, Universitas Bina Nusantara, Jl. K.H. Syahdan No. 9, Kemanggisan/Palmerah, Jakarta Barat 11480
Chemistry Computer Science & IT Education

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Penerapan Pendekatan Contextual Teaching And Learning (CTL) Pada Materi Larutan Penyangga Kelas XI IPA 1 SMA Negeri 1 Poso Pesisir Utara Riyadi, Bayu; Hamzah, Baharuddin; Sakung, Jamaluddin
Jurnal Akademika Kimia Vol 4, No 1 (2015)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (313.312 KB)

Abstract

The use of learning approach applied to the study of chemistry is still one-way, the student just as a listener and not actively involved in the learning process. This research aims to determine the learning outcomes to the students who take buffer to the grade XI IPA I SMAN 1 Poso Pesisir Utara with contextual teaching and learning approach was better than the grade that follows the learning without contextual teaching and learning approach. The research population was all students of class XI IPA I SMAN 1 Poso Pesisir Utara in academic year 2013-2014 amounted to 65 studets were distributed in to classes. The research sample was determined by purposive sampling, 33 class XI IPA I as the experimental class and 32 class XI IPA 2 as control class. The data collection using test instruments in the form of 18 multiple-choice items that had been tested for validity and reliability. chemistry achievement of buffer test material, research data testing use t-test statistical p-analysis of the parties to the prerequisite test, test for normality and homogeneity tests. The analysis statistical hypothesis t-test was obtained value of tcalculate = 2.41 and ttable value = 1.67 this implies rejection of Ho. It can be concluded that the approach contextual teaching and learning effect on learning outcomes of students of the grade XI IPA I at SMAN 1 Poso Pesisir Utara in the material buffer with a good score than the conventional learning.
PERANCANGAN PERANGKAT LUNAK GENERATOR GAMBAR DAN MUSIK FRAKTAL DENGAN METODE ITERATED FUNCTION SYSTEM Wahjono, Tri Djoko; Karim, Syaeful; Riyadi, Bayu
CommIT (Communication and Information Technology) Journal Vol 1, No 2 (2007): CommIT Vol. 1 No. 2 Tahun 2007
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/commit.v1i2.475

Abstract

Article presents analysis and analyze a software that utilize Geometry Fractal, especially Iterated FunctionSystem Fractal, as art. Research method that has been used in this research is by library study and by laboratoriumstudy to test the performance of the software. Result of the research has shown that converted music by GeometryFractal has various results, which depend on the parameters used in it and type of Geometry Fractal image produced.It can be said that usage of fractal in high iteration can produce clear image fractal and complicated music fractal.
Co-Authors Baharuddin Hamzah Jamaluddin Sakung Syaeful Karim, Syaeful Tri Djoko Wahjono, Tri Djoko