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Journal : Jurnal Tematik

Pengaruh Model Pembelajaran Problem Based Learning (PBL) Terhadap Keterampilan Berpikir Kritis Pada Materi Bangun Datar Di SD Muhammadiyah 1 Babat Zahro Mamluatul Muwafidah; Humairah Humairah; Arfian Mudayan
Jurnal Tematik Vol 14 No 1 (2025): Jurnal Tematik
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jt.v14i1.68121

Abstract

This study aims to determine the effect of the Problem-Based Learning (PBL) model on the critical thinking skills of fifth-grade students in the topic of plane figures at SD Muhammadiyah 1 Babat. The method used is quantitative with a pretest-posttest control group design. The sample consists of 44 students divided into two classes: an experimental class that received the PBL treatment and a control class that used a conventional learning model. The research instrument was an essay test based on critical thinking indicators, namely: interpretation, analysis, evaluation, and inference. The results of the data analysis using a t-test showed that there was a significant difference between the posttest results of the experimental and control classes. This finding proves that the PBL learning model has a positive effect on improving students' critical thinking skills. Therefore, PBL can be used as an alternative learning strategy to enhance students' critical thinking abilities in mathematics, particularly in the subject of plane figures.
Penerapan Media Digital Interaktif Berbasis Aplikasi Kahoot untuk Meningkatkan Pemahaman Konsep Siswa SDN Ngasemlemahbang Tusida Sherlina Dewi; Humairah Humairah; Arfian Mudayan
Jurnal Tematik Vol 14 No 2 (2025): Jurnal Tematik
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jt.v14i2.68127

Abstract

This study aims to improve students' conceptual understanding. This type of classroom action research implements interactive digital media based on the Kahoot application. The subjects of the study were all fourth-grade students at SDN Ngasemlemahbang, totaling 16 students. Each cycle consisted of the stages of planning, implementation, observation, and reflection. The data analysis techniques used were observation result analysis and conceptual understanding analysis. The results of the study can be concluded as follows: (1) Teacher activity observation in Cycle I obtained an average score of 62.5%, and in Cycle II, it increased to 88.67%, showing an improvement of 26.17%. (2) Student activity observation in Cycle I obtained an average score of 58.33%, and in Cycle II, it increased to 89.16%, indicating an improvement of 30.83%. (3) Students’ conceptual understanding in Cycle I reached 56.25%, and in Cycle II, it increased to 81.25%, showing an improvement of 25%. Therefore, it can be concluded that the use of the Kahoot application in learning activities can improve students’ conceptual understanding in the topic of two-dimensional shapes in the fourth grade at SDN Ngasemlemahbang.