Gede Yohanes Arygunartha
Faculty of Agriculture, Warmadewa University, Indonesia

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The effect of science technology society (STS) learning model on science literation in physical learning reviewed from cognitive style Gede Yohanes Arygunartha
SEAS (Sustainable Environment Agricultural Science) Vol. 2 No. 2 (2018)
Publisher : Warmadewa University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (806.628 KB) | DOI: 10.22225/seas.2.2.870.114-120

Abstract

The purpose of this study is 1) to analyze differences in scientific literacy of students between groups of students who study learning model STM and learning model of Direct Instruction (DI), 2) to analyze the effect of the interaction between the learning model STM with cognitive style on scientific literacy of students, 3) Analyzing the difference differences in scientific literacy of students between groups of students who study learning model STM and learning model of Direct Instruction (DI) which have a cognitive style field dependent (FD), and 4) to analyze the differences differences scientific literacy of students between groups of students who study learning model STM and learning model of Direct Instruction (DI) which have a cognitive style field independent (FI). This study is a quasi-experimental design with posttest only control group design. The study population was all students of class XI MIA Denpasar Hope Christian High School in the academic year 2018/2019. Decision-class research group based random sampling technique. Data were analyzed with descriptive statistics and ANOVA two lanes. The results of the analysis states the following. (1) there are differences in the results of scientific literacy scores physics, among students who study learning model Science Technology Society (STM) with students learning with learning model DI (F = 79,32; p
Refraction of Light on Prisma Applications Gede Yohanes Arygunartha; Ni Luh Putri Setyaningsih
Agriwar Journal Vol. 2 No. 1 (2022): Agriwar Journal
Publisher : Program Studi Magister Sains Pertanian Program Pascasarjana Universitas Warmadewa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (215.645 KB)

Abstract

A prism is a clear object made of glass. Its uses include directing light beams, changing and invertingshadows, and breaking white light into the colors of the spectrum (rainbow colors). The difference in thecolor of the spectrum is caused by the difference in the wavelength and frequency of the constituent rays,so that in the medium these rays have different refractive indices. Assume that the medium around the prismis air. This is called the angle of deviation. The angle of deviation is the angle formed by the intersectionof the extended incident light and the extended refracted light leaving the prism. The light beam that comesto the prism in the direction of ED will be refracted along the line DF and so on out of the prism in thedirection of FG. It is difficult for us to see or mark the red spectrum and the purple spectrum due to theinfluence of light from outside the laboratory, so we need a dark enough room to see the spectrum. Difficultyin determining the direction of the light source so that it coincides with a predetermined normal line, thelight is out of focus (a bit wide).