Stage of cognitive mathematics students development based on piaget's theory reviewing from personality type

This study aims to examine the suitability of Piaget's stage of cognitive development in terms of personality type for class X students of SMA Wachid Hasyim 2 Taman. The subjects of this study were 25 students with ages between 12 to 16 years. This study uses the Test of Logical Operations (TLO) instrument in mathematics and the Myers-Briggs Type Indicator (MBTI) test. The TLO consists of 14 questions and students are given 45 minutes to answer all questions, while the MBTI contains 60 statements and students are given 30 minutes to give statements that match their personality. The results showed that 28.5% of students were extroverted in the early concrete operations stage and 71.5% in the late concrete operations stage. While 27.2% of students were introverted at the initial concrete operation stage and 72.8% at the final concrete operation stage. The average score of Piaget's TOL has the same value for extroverted and introverted students, namely 47, which means that the average student tends to be in the final concrete stage. The difference in understanding between the average extroverted and introverted students in the compatible type, where the average extrovert student has high understanding while introverted students have sufficient understanding.