R.E. Andina, Y. Rahmawati, A. Ridwan
This paper describes students' mental model of salt hydrolysis concepts. The subjects of this study were the best science class of public senior high school at Klaten, Central Java. This research employed ethnography as a research methodology. Data were collected through in-depth interview, classroom observation, and reflective journals. The result showed that students built their mental model based on their understanding and experience that influenced by their ethics and values. The values of politeness, empathy communication, and respectful influence their classroom interaction. The students' mental model in salt hydrolysis concepts were divided into understanding and misconceptions. Students' misconceptions were the concept which states that salt hydrolysis is the salts decomposition in water. Students were not considered about dissociation and equilibrium of acid and base to explain about salt hydrolysis. In addition, the students also determined salt's characteristic of acid and base by the origin of ions in the salts, not based on hydrolysis reaction of the salt. Teacher's understanding of students' mental model will help the teacher to developing meaningful learning experiences. © 2018 Published under licence by IOP Publishing Ltd.
Program Studi Pendidikan Kimia, Universitas Negeri Jakarta, Jl. Rawamangun Muka, Jakarta Timur, 13220, Indonesia
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