EFEKTIVITAS MODEL PEMBELAJARAN PROBLEM BASED INSTRUCTION BERPENDEKATAN ETNOSAINS UNTUK MENINGKATKAN KETERAMPILAN GENERIK SAINS SISWA PADA MATERI STOIKIOMETRI

Tin Rosidah

Abstract


This study aims to determine the effect of problem based instruction learning model with ethnoscience science approach to students' generic science skills on stoichiometric material. This research is a quasi-experimental method with times series design. Determination of the sample using purposive sampling technique. Data collection techniques were carried out by measuring question instruments, observations, and open interviews. The pretest and posttest implementation in this study was conducted four times. There are five aspects of generic science skills measured in this study, namely aspects of concept building, mathematical modeling, symbolic language, direct observation, and indirect observation. The results of the study obtained N-Gain values for each different aspect. N-Gain conceptual aspects of 0.776 (height), mathematical modeling aspects of 0.625 (medium), symbolic language assumptions of 0.607 (moderate), direct observation aspects of 0.725 (high), and indirect observation aspects of 0.604 (medium). To test the hypothesis, non-parametric t-test is used because the data obtained is not normal. Based on the t test that has been done, it is obtained the data of sig 2 tailed value of 0,00 where 0,00 <0,05, meaning that there is a significant effect on the use of problem based instruction learning model with ethnoscience approach towards students' generic science skills in stoichiometric material. This model is also effective in improving students' genetic skills in stoichiometry material seen from the high number of effect sizes, namely on the aspect of building with effect size of 98%, mathematical modeling by 96%, symbolic language by 96%, direct observation by 98%, and indirect observation of 92%. Individual mastery obtained is 71.32 (complete), while the classical completeness obtained is equal to 55.70% (incomplete).

Keywords


Problem Based Instruction, ethnoscience, generic science skills, stoichiometry

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DOI: https://doi.org/10.26714/jps.7.1.2019.14-21

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