Student’s Computational Thinking Process in Solving PISA Questions in Terms of Problem Solving Abilities

Computational thinking is the process of solving problems using logic gradually and systematically needed in field mathematics. However, learning applied by teacher limits student's ability to develop computational skills. Teachers are accustomed providing conventional emphasize skills formulas. One treatments that can be used stimulate PISA questions. The purpose this study was analyze processes questions terms their problem abilities. research data consisted student answers, think aloud results, semi-structured interviews. Data analysis techniques reduction, presentation, drawing conclusions or verification. results showed students with low abilities only reached decomposition stage because were able simplify even though it incomplete, but they not connect mathematical concepts materials build a solution. Meanwhile, moderate high limited pattern recognition strategies, make mistakes patterns, there incomplete steps. So concluded reaches stage. indicators.