Problem Based Learning: A Model in Geometry Learning to Measure Students' Mathematical Literacy and Self-Efficacy

Abstract

Mathematical literacy is a necessary ability in the 21st century. Mathematical literacy plays a role in improving problem solving abilities. Mathematical literacy skills are needed to support a golden generation that is competitive in welcoming the development of science and technology. Besides that, self-efficacy is very necessary in learning mathematics. Self-efficacy plays a role in improving problem solving abilities. In fact, students' mathematical literacy skills and self-efficacy are still relatively low. Students have not been able to solve mathematical problems in the form of geometric problems. Students' weaknesses are caused by students' lack of training in solving problems outside of the habits taught, and the learning implemented has not trained students in developing mathematical literacy skills. Students' self-confidence in their abilities is less well formed and developed. So the aim of the research is to determine students' mathematical literacy abilities and self-efficacy by using problem learning models and conventional learning. This type of research is quantitative research using a quasi-experimental method with a nonequivalent control group design in class VII of one of the State Middle Schools in Serang Banten. Samples were obtained using purposive sampling technique. Data collection techniques used mathematical literacy ability tests and self-efficacy questionnaires. Data were analyzed using the difference between two means test with the t-test. The results showed that the mathematical literacy skills and self-efficacy of experimental class students were better than those in the control class. It was concluded that the mathematical literacy skills and self-efficacy of students who used the problem-based learning model were better than conventional learning.