Analysis of critical thinking skills in chemistry learning by using mobile learning for level x

This study aims to analysis of critical thinking skills in chemistry learning of the topics electrolyte solution and oxidation-reduction reaction by using mobile learning media. The subjects of this study at 3 Bogor High School West of Java. The research was conducted in December 2016 - July 2017. The research method used is qualitative method. Data analysis techniques were performed with data reduction, data display, conclusions and verification. The quality standard used is trustworthiness with the criteria of credibility through prolonged engagement, persistent observation, progressive subjectivity and member checking. Research data obtained through observation during learning, critical thinking skills tests, interviews, and questionnaires. Indicators of critical thinking skills in question are asking and answering questions, focusing questions, considering the credibility of a source, making observations and considering observation reports, making inductions and considering induced results, defining terms and considering definitions, deciding an action, and interacting with others. The results showed that eight critical thinking indicator tends to awaken and develop on learning with mobile learning media. Based on the results of critical thinking skills tests of each indicator studied include a score of 82% - 88% which can be categorized in good category.