Exploring the Student Critical Thinking in Mathematical Problem Solving
Sutji Rochaminah, Irmawati, and Muh. Rizal

Mathematics Education Study Program, Universitas Tadulako, Palu, Indonesia

Abstract

This research qualitative aims to describe the students critical thinking in solve problems related to patterns in sequences of numbers. The research subjects were 3 students grade VIII who were selected based on the results of math tests. Data collection techniques by giving the task of solving problems and interviews. The student critical thinking is described using approach Focus, Reason, inference, Clarity, and Overview (FRISCO). The results showed that participant with high math skills, identify the main problem. In Reason, analysis questions and statements, using reasoning of inductive then using an arithmetic series formula. In Inference, concluding the value of the difference in a sequence of numbers and the solution. In Situation, by looking for the difference in a sequence then determining the number of the first 12 terms using the formula. On clarity, explains the terms and symbols used. In Overview, solve the problem again and comparing the results with the previous results. Participant with moderate mathematical ability in the reason, using reasoning of inductive then mathematical principles and rules. In Inference, concluding the value of the difference in a sequence of numbers and the solution. In the situation, by find the difference in a sequence then adds adding up each term. On clarity, explains the term and the difference symbol. Participant with low math ability, only write down and mention what is known and asked and give reasons using question marks for question sentences. The description of the critical thinking can be considered by teachers in formulating learning strategies for critical thinking

Keywords: Critical Thinking- Problem Solving- Number Pattern- approach FRISCO

Topic: Mathematics and Science Education