Abstract
The instruments used are reasoning ability tests, self-confidence questionnaires, intrapersonal intelligence questionnaires and interview guidelines. Data analysis used the Mile and Huberman model. Subjects in this study involved students of SMP N 5 Vocational Youth who were given problem-based learning treatment with a total of 30 people. Intrapersonal intelligence of students with problem-based learning models, high-ability students as many as 8 students or (26.67%), students with moderate abilities as many as 18 students or (60%) and students with low ability as many as 4 people or (13.34%). The conclusion of mathematical reasoning ability using problem-based learning model, high-ability students as many as 7 students or (23.33), moderately capable students as many as 13 students or (43.33%) and low-ability students as many as 10 students or (33.33%) ). Keywords: Mathematical reasoning ability, Self-Confidence, PBL Model DOI: 10.7176/JEP/12-16-08 Publication date: June 30 th 2021
Highlights
PRELIMINARY According to the Law of the Republic of Indonesia No 20 of 2003 concerning the National Education System Chapter I Article 1 that "Education is a conscious and planned effort to create a learning atmosphere and learning process so that students actively develop their potential, society, nation and state". (Shah, 2014)
Mathematics is one of the subjects studied by students starting from elementary school (SD) to university.This happens because mathematics is an important learning and has many benefits as stated by Fiad, Suharto and Kurniati (2017) "Mathematics is a basic science that plays an important role in the development of science and technology, because mathematics is a means of thinking to develop reasoning power. , logical, systematic and critical way of thinking”
While Siagian (2016) stated that "Mathematics is one of the branches of science that has an important role in the development of science and technology, both as a tool in the application of other fields of science and in the development of mathematics itself." Sundayana (2016) said that "mathematics is one of the components of a series of subjects that have an important role in education"
Summary
PRELIMINARY According to the Law of the Republic of Indonesia No 20 of 2003 concerning the National Education System Chapter I Article 1 that "Education is a conscious and planned effort to create a learning atmosphere and learning process so that students actively develop their potential, society, nation and state". (Shah, 2014). Teachers are said to be professional if they have high work skills and sincerity to teach as well as possible and are able to make students think, behave and act creatively.Zahroh, 2015). Mathematics is one of the subjects studied by students starting from elementary school (SD) to university.This happens because mathematics is an important learning and has many benefits as stated by Fiad, Suharto and Kurniati (2017) "Mathematics is a basic science that plays an important role in the development of science and technology, because mathematics is a means of thinking to develop reasoning power. Mathematics learning in schools must be able to prepare students to have mathematical reasoning abilities as a provision to face the challenges of development and change. According to Ruseffendi (2006) that "mathematics is formed as a result of human thinking related to ideas, processes and reasoning"
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