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Enhancing Mathematical Problem-Solving and Teamwork Skills For Junior High Schools Student Through Project-Based Learning

Edumatica : Jurnal Pendidikan Matematika · Vol. 15 No. 3 (2025) · hlm. 430–445

DOI
10.22437/edumatica.v15i3.43491
ISSN
2580-0779, 2088-2157
Terbit
2025-12-08
Penerbit
Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi
Bahasa
en
Lisensi
creativecommons.org/licenses/by-nc-sa/4.0

Abstrak

Problem-solving skills are not only correlated to academic success but also to increased competitiveness in a professional environment. However, many junior high school students have both weak mathematical problem-solving and teamwork skills. This study aims to describe the improvement of mathematical problem-solving and teamwork skills of students using the Project Based Learning (PjBL) model and scientific learning. This study is a quantitative study with a quasi-experimental method, using Pretest-Posttest Control Group Design. The population in this study consisted of 186 junior high school students in Bengkalis Regency. Data collection techniques were carried out through mathematical problem-solving ability tests and teamwork questionnaires. Data analysis was carried out using normalized gain (N-Gain) and one-way ANOVA. Based on the results of the data analysis, the results obtained were that students in the PjBL group showed a higher increase in problem-solving and teamwork skills with N-gains of 0.48 and 0.42, respectively, compared to the control class which obtained N-gains of 0.21 and 0.09, respectively. Teamwork skills consistently improved across all grades, while improvement in problem-solving skills varied according to students' initial abilities. This study supports existing research by integrating cognitive and affective aspects of problem-solving and financial literacy skills into everyday life.

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Sumber metadata: OAI-PMH (metadata jurnal) https://online-journal.unja.ac.id/index.php/edumatica/oai, pertama di-harvest 6 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">Enhancing Mathematical Problem-Solving and Teamwork Skills For Junior High Schools Student Through Project-Based Learning</dc:title>
	<dc:creator xml:lang="en">Roza, Yenita</dc:creator>
	<dc:creator xml:lang="en">Murni, Atma</dc:creator>
	<dc:creator xml:lang="en">Gumanti, Gumanti</dc:creator>
	<dc:creator xml:lang="en">Adnan, Arisman</dc:creator>
	<dc:creator xml:lang="en">Alawiyah, Tuti</dc:creator>
	<dc:subject xml:lang="en">Problem Solving Skill</dc:subject>
	<dc:subject xml:lang="en">Project Based Learning</dc:subject>
	<dc:subject xml:lang="en">Teamwork Skills</dc:subject>
	<dc:subject xml:lang="id">Kemampuan pemecahan masalah</dc:subject>
	<dc:subject xml:lang="id">Project based learning</dc:subject>
	<dc:subject xml:lang="id">Profil Kerjasama</dc:subject>
	<dc:description xml:lang="en">Problem-solving skills are not only correlated to academic success but also to increased competitiveness in a professional environment. However, many junior high school students have both weak mathematical problem-solving and teamwork skills. This study aims to describe the improvement of mathematical problem-solving and teamwork skills of students using the Project Based Learning (PjBL) model and scientific learning. This study is a quantitative study with a quasi-experimental method, using Pretest-Posttest Control Group Design. The population in this study consisted of 186 junior high school students in Bengkalis Regency. Data collection techniques were carried out through mathematical problem-solving ability tests and teamwork questionnaires. Data analysis was carried out using normalized gain (N-Gain) and one-way ANOVA. Based on the results of the data analysis, the results obtained were that students in the PjBL group showed a higher increase in problem-solving and teamwork skills with N-gains of 0.48 and 0.42, respectively, compared to the control class which obtained N-gains of 0.21 and 0.09, respectively. Teamwork skills consistently improved across all grades, while improvement in problem-solving skills varied according to students' initial abilities. This study supports existing research by integrating cognitive and affective aspects of problem-solving and financial literacy skills into everyday life.</dc:description>
	<dc:publisher xml:lang="en">Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi</dc:publisher>
	<dc:date>2025-12-08</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://online-journal.unja.ac.id/edumatica/article/view/43491</dc:identifier>
	<dc:identifier>10.22437/edumatica.v15i3.43491</dc:identifier>
	<dc:source xml:lang="en">Edumatica : Jurnal Pendidikan Matematika; Vol. 15 No. 3 (2025): Edumatica: Jurnal Pendidikan matematika (December 2025); 430-445</dc:source>
	<dc:source xml:lang="id">Edumatica : Jurnal Pendidikan Matematika; Vol 15 No 3 (2025): Edumatica: Jurnal Pendidikan matematika (Desember 2025); 430-445</dc:source>
	<dc:source>2580-0779</dc:source>
	<dc:source>2088-2157</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://online-journal.unja.ac.id/edumatica/article/view/43491/22799</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2025 Yenita Roza, Atma Murni, Gumanti, Arisman Adnan, Tuti Alawiyah</dc:rights>
	<dc:rights xml:lang="en">http://creativecommons.org/licenses/by-nc-sa/4.0</dc:rights>
</oai_dc:dc>