Enhancing Critical Reasoning Character and Mathematics Learning Outcomes Through Case-Based Learning

Gerardy Tefa; Rika Handayani; Fitriani Fitriani

doi:10.31932/j-pimat.v8i2.7155

Enhancing Critical Reasoning Character and Mathematics Learning Outcomes Through Case-Based Learning

Gerardy Tefa, Rika Handayani, Fitriani Fitriani

Abstract

This study aims to enhance students' critical reasoning character and mathematics learning outcomes by implementing the Case-Based Learning (CBL) model. The research employed Classroom Action Research (CAR) using the Kemmis and McTaggart strategy. The study was conducted over two cycles, with each cycle comprising planning, implementation, observation, and reflection stages. The subjects were 28 students from class VIIIA at SMP Negeri Maubeli. Data collection techniques included a critical reasoning character questionnaire, observation sheets, and learning outcome tests. Data were analyzed using descriptive quantitative and qualitative methods, focusing on the improvements observed in each cycle. The results indicate that the CBL model successfully enhanced students' critical reasoning character, evidenced by the increase in the percentage of students falling into the "good" and "very good" categories—rising from 46.43% in Cycle I to 85.71% in Cycle II. Student learning outcomes also improved, with the classical mastery rate increasing from 64.28% in Cycle I to 92.85% in Cycle II. Student activity levels rose from 55% to 90%, while teacher activity increased from 92.5% to 97.5%. Therefore, it can be concluded that the Case-Based Learning method effectively improves students' critical reasoning character and mathematics learning outcomes regarding the topic of relations and functions.

Keyword: case-based learning, critical reasoning character, mathematics learning outcomes

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DOI: https://doi.org/10.31932/j-pimat.v8i2.7155