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All Journal Haumeni Journal of Education Jurna Beta Kimia
Dakabesi, Daud
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Chemical Engineering, Chemistry & Bioengineering Chemistry Education

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Influence of Problem-Based Learning Models Improving Students’ Problem-Solving Skills Dakabesi, Daud
Jurnal Beta Kimia Vol 5 No 1 (2025): Volume 5 Number 1, May 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jbk.v5i1.21144

Abstract

One cognitive skill needed to meet the demands of the complex and dynamic development of the twenty-first century is problem-solving. Therefore, this research aimed to investigate how well 126 students understood chemical difficulties about reaction rate material both individually and collaboratively. Only a posttest is applied in this study's quasi-experimental research design. Sixty-two learners in the experimental class received treatment using a Problem-Based Learning (PBL) model, while sixty-four learners in the learning control group received treatment using traditional methods. According to the findings, pupils in the experimental class were more adept at solving problems than those in the control group. The study's findings also show how collaborative problem-solving significantly aids students' attempts to solve chemical challenges.
Analisis Kemampuan Berpikir Kritis dan Keterampilan Memecahkan Masalah Pada Materi Laju Reaksi Menggunakan Pembelajaran Konstruktivistik Dakabesi, Daud; Astuti, Tiwi Nur
Haumeni Journal of Education Vol 5 No 3 (2025): Edisi Desember 2025
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/haumeni.v5i3.25773

Abstract

The purpose of this study is to analyze the development of critical thinking skills and problem-solving skills of students on the material of speed when implementing constructivist learning. This study is a quasi-experimental study type using a posttest only design research design. The sample selection used a random sampling technique that obtained a sample of 127 students of class XI MIPA who were then divided into two research classes, namely experimental class 1 and experimental class 2. Both research classes will be applied constructivist learning model with details, experimental class 1 applies the problem-based learning (PBL) model while experimental class 2 applies the guided inquiry learning model. Data collection was obtained from research instruments in the form of critical thinking ability tests, problem-solving skills tests, critical thinking ability questionnaires and problem-solving skills observation sheets. The statistical test used to analyze the data was the MANOVA test with a significance level of 5%. The findings of this study illustrate that students' critical thinking abilities and problem-solving skills increase when constructivist learning is implemented. However, the increase in these abilities and skills was not the same for both research classes.
Co-Authors Tiwi Nur Astuti