PENGARUH MODEL PEMBELAJARAN PROBLEM BASED LEARNING PADA SUB MATERI TATA NAMA SENYAWA HIDROKARBON TERHADAP HASIL BELAJAR SISWA KELAS XI MIA SMA NEGERI 1 PEMANGKAT
The Minimum Exhaustiveness Criteria (KKM) of eleventh grade students of SMA Negeri 1 Pemangkat on chemistry subject was still under 75, especially on the material about hydrocarbon compounds and petroleum with a percentage of 70.53. Thus, by using an appropriate learning models could improve students’ achievement. The purpose of this research was to know whether there was a difference and the influence of the PBL learning model against student learning outcomes. This was a Quasi Experimental Research with Non-equivalent Control Group Design. Sample selected by using purposive sampling, they were XI MIA-3 students as the class experiment and XI MIA-2 as class control. The techniques of data collection were measurement, observation, and direct communication technique. The tools of data collection were test results learning, observation sheets, and interview guidelines. Based on data analysis using non-parametric test of U-Mann Whitney showed that there was differences of learning result, that was 0,000 <0,05. This showed that students' learning outcomes was different between different experimental class with control class. The effect size obtained by the student learning result was 1.19 which is included in the high criterion. Keywords: Learning outcomes, Problem Based Learning (PBL), hydrocarbon compounds