PENGARUH MODEL PEMBELAJARAN CONTEXTUAL TEACHING AND LEARNING (CTL) BERBASIS KEARIFAN LOKAL TERHADAP PENINGKATAN KEMAMPUAN BERPIKIR KRITIS SISWA PADA PELAJARAN IPAS

Abstract

This study aims to examine the effect of the Contextual Teaching and Learning

(CTL) model based on Nguda Kaca local wisdom on improving students' critical

thinking skills in IPAS subjects at SDN 1 Tolowata. The research method used a

quantitative approach with a quasi-experimental Nonequivalent Control Group

Design involving 26 fourth-grade students divided into two groups. The experimental

group received CTL-based learning rooted in Nguda Kaca local wisdom, while the

control group used conventional teaching methods. The research instrument

consisted of a critical thinking skills test covering indicators such as identifying

problems, analyzing arguments, evaluating evidence, drawing conclusions, and

reflecting on thoughts. The data were analyzed using a Paired Sample t-test with

the help of SPSS. The results showed that the experimental group experienced an

average score increase of 30.0 points (60.8%) from 49.3 to 79.3, while the control

group only increased by 10.5 points (23.2%) from 45.3 to 55.8. The hypothesis test

yielded a t-value of 18.456 with significance of 0.000 < 0.05, indicating a highly

significant difference. An effect size of 2.84 indicates a very large effect. This study

proves that the CTL learning model based on Nguda Kaca local wisdom is effective

in improving students' critical thinking skills and can be used as a meaningful

contextual learning alternative in the implementation of the Merdeka Curriculum.