Improving students' mathematical creative reasoning on polyhedron through concept-based inquiry model

Abstract

Mathematical reasoning is defined as an activity of mathematical thinking to produce statements or conclusions based on existing facts. Mathematical reasoning is divided into creative reasoning and imitative reasoning. According to constructivism theory, the idea in mathematics should be built by students, therefore mathematics become logic, meaningful, and real. One of the constructivist learning models that facilitate students to actively discover their own concepts is CBI model. The study aims to know the effectiveness of the CBI model on teaching mathematics toward improving MCR. The research is conducted in the year 2019/2020 at junior high school one in Citeureup-Bogor. Two classes, as the sample of the research, the first class as experiment class,and the second class as control class, both of them consists of 36 students. The instrument used to identify students' MCR abilities was an essay test on the polyhedron material. By using t-test analysis at a significant level of 5%, we obtained the Sig. (2-tailed) the value obtained was 0.018. Therefore, Sig. (2-tailed) = 0.018 < a = 0.05. It means that students' MCR taught by CBI model is higher than students' MCR who taught with conventional learning models.