Indonesia Conference Directory

This study aims to: (1) have a profile of students scientific reasoning of high school students in science program; (2) to investigate the relation of students scientific reasoning ability with understanding of chemical triangle representation of students on salt hydrolysis topic of grade science program in High School. This research used descriptive qualitative method. In this research, there are five levels of scientific reasoning: level No Response, Non-normative, General Descriptive, Bronsted Mechanistic and Bronsted Causal. Students scientific reasoning was measured using open-ended test. The determination of each level was determined by two ratters using the Cohen-s Kappa formula, in which the results of reliability for scientific reasoning, 0.95. Participants of this study as many as ninety 10th grade students in one public high school in Surakarta, Indonesia. Data collection techniques include written test, observations and interviews. Based on the results of the study showed that, (1) Profile of students scientific reasoning at General Descriptive level of 40%, Non-normative level of 33%, Bronsted Causal level of 26%, Response level of 1% and Bronsted Mechanistic level of 0%. The most of students have General Descriptive level, where the students- answer is only at the "What" stage hydrolysis occurs in general or using Bronsted-lowry theory. (2) not all levels of scientific reasoning have a understanding of the overall triangle representation (M-SM-S), but the understanding the overall chemical triangle representation (M-SM-S) can inducing good scientific reasoning.