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All Journal Algebra : Jurnal Pendidikan Sosial dan Sains
Mariani Natalina L
Riau University
Education Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Neuroscience Physics Social Sciences Other

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THE EFFECT OF THE PROBLEM-BASED LEARNING MODEL INTEGRATED WITH ETHNOSCIENCE ON THE CRITICAL THINKING SKILLS OF 10TH GRADE STUDENTS AT SMAN 1 SENTAJO RAYA Nurul Sepriza; Mariani Natalina L; Resma Wahyuni
Algebra : Jurnal Pendidikan, Sosial dan Sains Vol. 5 No. 4 (2025): Algebra : Jurnal Pendidikan Sosial dan Sains
Publisher : Yayasan Amanah Nur Aman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58432/dj292n90

Abstract

ABSTRACT This study was motivated by the low critical thinking skills of students in biology learning. The low critical thinking skills of students are caused by the use of learning models that lack variety and the lack of student concern for the environment. This study aims to determine the effect of the Problem- Based Learning (PBL) model integrated with Ethnoscience on students' critical thinking skills in the subject of environmental change and preservation in class X at SMAN 1 Sentajo Raya. The research used a Quasi-Experimental method with a Pre-test-Post-test Non-Equivalent Control Group Design. The research sample consisted of two classes selected by Random Sampling, namely the experimental class that was given the integrated PBL treatment with Ethnoscience and the control class that used the Discovery Learning model assisted by PowerPoint. The research instruments were critical thinking skills tests and observation sheets. The results showed that the critical thinking skills of students in the experimental class were higher than those in the control class. This was evident from the pretest average score of 42.8 in the experimental class and 39.86 in the control class, and the posttest average score of 80.13 in the experimental class and 67.2 in the control class. Data analysis using an independent sample t-test showed a significance value (2-tailed) of 0.00 < 0.05 with a t-value > t-table, namely 5.545 > 1.994. It can be concluded that the application of the integrated ethnoscience Problem Based Learning model has an effect on students' critical thinking skills in the subject of environmental change and preservation in class X at SMAN 1 Sentajo Raya.
THE EFFECT OF PREZI-ASSISTED PRESENTATION MEDIA ON STUDENTS’ CRITICAL THINKING SKILLS IN THE COORDINATION SYSTEM TOPIC FOR GRADE XI AT SMA NEGERI 8 PEKANBARU Sanni H. Simangunsong; Mariani Natalina L; Darmadi
Algebra : Jurnal Pendidikan, Sosial dan Sains Vol. 6 No. 2 (2026): Algebra : Jurnal Pendidikan Sosial dan Sains
Publisher : Yayasan Amanah Nur Aman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58432/kqv8te41

Abstract

The low critical thinking skills of students in biology learning motivated this study. This issue occurs due to several factors, one of which is the use of presentation media that does not adequately support the learning process. The purpose of this study was to determine the effect of Prezi presentation media on students’ critical thinking skills in the coordination system topic for Grade XI at SMA Negeri 8 Pekanbaru. This study employed a quasi-experimental method with a pretest–posttest control group design. The samples were classes XI.10 and XI.8, selected using purposive sampling. Prezi presentation media was used in the experimental class during the learning process, while the control class used PowerPoint media commonly used by the teacher. The research instruments included a critical thinking skills test and an observation sheet. The results showed that the critical thinking skills of students in the experimental class were higher than those in the control class. The average pretest score of the experimental class was 43.5 compared to 39.3 in the control class, while the average posttest score was 81.8 in the experimental class and 68.8 in the control class. The data obtained were analyzed using an independent sample t-test, resulting in a significance value (2-tailed) of 0.000 < 0.05. Therefore, it can be concluded that the use of Prezi-assisted presentation media has a significant effect on students’ critical thinking skills in the coordination system topic for Grade XI at SMA Negeri 8 Pekanbaru.
Co-Authors Darmadi Nurul Sepriza Resma Wahyuni Sanni H. Simangunsong