The research was intended for analyzing the effectiveness of Higher Order Thinking Skills (HOTS) assessment towards critical thinking skills of high school students in Mathematics lesson. The subjects of this study were students XII-IPA class, SMA Negeri 8 Denpasar, the academic in 2017/2018. Sample selection in this study was applied random sampling technique. The research design used was post-test only control group design. The critical thinking of the student's skill was obtained through tests using HOTS assessment. The data were obtained and analyzed using ttest (2-tailed). The analysis results were to show that HOTS assessment could improve student's critical thinking skills in mathematics lesson effectively. Widana, I., Parwata, I., Parmithi, N., Jayantika, I., Sukendra, K., & Sumandya, I. (2018 (NEA, 2012). The competencies were expressed in 4Cs: (1) Critical thinking and problem-solving. It is included reasoning ability, thinking, making good evaluation and decisions, and solving problems. (2) Communication defines an oral ability, written, and non-verbal communication in various forms, context, and technology; deciphering meaning and aiming; and communicate in diverse environments. (3) Collaboration defines workability in a diverse, flexible, willing to achieve common goals, gather responsibility for collaborative work, and respect for the individual contributions of the team members. (4) Creativity and innovation define a creative ability of the new idea and useful; describe, revise, analyze, and evaluate ideas to improve and maximize problem-solving efforts.
KeywordsIn order to achieve the essential competencies that are needed in the 21 st century. Three main components must be implemented comprehensively. (1) The more adaptive curriculum. The curriculum content development can inspire thinking and skills related to the time's challenges. (2) The more participatory learning model, the development of learning models directed to develop collaborative, interactive, creative, and innovative skills; and (3) the more meaningful assessment, namely the development of Contextual Assessment model and the demand for Higher Order Thinking Skill (HOTS). These three components should be run simultaneously and integrated (Andrew and Willingham, 2009).Richard Paul & Linda Elder (2006) defines Critical thinking as art for improving thinking skills in analyzing and evaluating specific problem-solving. A well-trained critical thinker has the ability to (1) formulating key questions and issues, formulating the problem clearly and precisely. (2) collecting and assessing relevant information, using abstract ideas to interpret them effectively. (3) resulting in a logical conclusion and be able to test it using certain criteria and standards. (4) Open minding in alternative thought systems, to recognize and assess, as needed, its assumptions, implications and practical consequences. (5) communicating effectively with others to find problems solutions.The critical thinking skill in included: (1) problem analysis, c...
