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The RADEC (Read, Answer, Discuss, Explain, and Create) learning model is an innovative approach that aims to improve students' critical thinking skills in elementary schools. This study aims to explore the effectiveness of implementing the RADEC model in the context of elementary school learning and its impact on the development of students' critical thinking skills. The RADEC approach emphasizes active student involvement through five main stages: reading to build initial understanding, answering questions to test reasoning power, discussing to broaden perspectives, re-explaining concepts to deepen understanding, and creating products or solutions as a concrete manifestation of the critical thinking process. This study used a quantitative method with a quasi-experimental design and involved fifth grade students in a public elementary school. The instruments used were critical thinking tests and student activity observation sheets. The results showed that the implementation of the RADEC model significantly increased students' critical thinking skill scores compared to conventional learning models. In addition, students showed higher enthusiasm and learning independence during the learning process. These findings indicate that the RADEC model is not only able to build a stronger understanding of concepts but also encourages students to actively analyze, evaluate, and create ideas. Therefore, the RADEC model is recommended as an effective alternative learning strategy to improve the quality of learning and critical thinking skills of students at the elementary school level.

The purpose of this study was to determine the effect of the RADEC learning model on the science learning outcomes of fifth grade students at SD Inpres 7/83 Bune. This type of research is a type of quantitative research or quasy experiment Nonequivalent Control Group Design. The sample and population are fifth grade students at SD Inpres 7/83 Bune, Bone Regency, totaling 40 students. The instruments in this study were tests and documentation.Based on the research results and data analysis, it can be concluded that the use of the RADEC learning model in learning has an effect on science learning outcomes in class V SD Inpres 7/83 Bune, Bone Regency. This is evident in the acquisition of the posttest average score of the experimental group's learning outcomes using the RADEC learning model compared to the acquisition of the average score in the control group students without using the RADEC learning model. The average posttest score of the experimental group was 84.5 and that of the control group was 54.7. This gain was strengthened based on the results of hypothesis testing using the T-test showing the condition for the results of t count > t table, namely 3.338 > 2.016 with the results of the hypothesis H0 being rejected and H1 being accepted. This proves that the use of the RADEC learning model has an effect on science learning outcomes in fifth grade students at SD Inpres 7/83 Bune, Bone Regency.