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Designing a Project-Based Learning Worksheet: Validity and Feasibility Evidence from the Geometrocity Project

Edumatica : Jurnal Pendidikan Matematika · Vol. 16 No. 1 (2026) · hlm. 88–107

DOI
10.22437/edumatica.v16i1.49315
ISSN
2580-0779, 2088-2157
Terbit
2026-04-20
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

Inggris

Students often struggle to express mathematical ideas through multiple external representations, particularly when learning polyhedral geometry that requires coordination of visual, verbal, and symbolic forms. This study aims to design a project-based learning worksheet and examine its validity and feasibility through the Geometrocity project. In this activity, students construct a miniature city as a contextual medium to explore geometric concepts while engaging with structured representational tasks. The study follows the ADDIE development framework and is limited to the development stage. The focus lies on producing a valid and feasible learning tool rather than measuring classroom effectiveness. Two material experts and one media expert evaluated the worksheet using validation instruments that assess content accuracy, language clarity, instructional presentation, and graphical design. Quantitative ratings were analyzed using descriptive statistics, while qualitative feedback supported iterative product revisions. The results indicate that the Geometrocity worksheet achieved high validity scores across all assessed aspects and met the criteria for feasibility. These findings suggest that the worksheet is suitable for use in further implementation studies. This study contributes a project-based worksheet that integrates structured representational activities within contextual geometry tasks.

Bahasa Indonesia

Students often struggle to express mathematical ideas through multiple external representations, particularly when learning polyhedral geometry that requires coordination of visual, verbal, and symbolic forms. This study aims to design a project-based learning worksheet and examine its validity and feasibility through the Geometrocity project. In this activity, students construct a miniature city as a contextual medium to explore geometric concepts while engaging with structured representational tasks. The study follows the ADDIE development framework and is limited to the development stage. The focus lies on producing a valid and feasible learning tool rather than measuring classroom effectiveness. Two material experts and one media expert evaluated the worksheet using validation instruments that assess content accuracy, language clarity, instructional presentation, and graphical design. Quantitative ratings were analyzed using descriptive statistics, while qualitative feedback supported iterative product revisions. The results indicate that the Geometrocity worksheet achieved high validity scores across all assessed aspects and met the criteria for feasibility. These findings suggest that the worksheet is suitable for use in further implementation studies. This study contributes a project-based worksheet that integrates structured representational activities within contextual geometry tasks.

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  • Universitas Jambi
  • Sriwijaya University
  • Institut Agama Islam Negeri Kendari
  • Ministry of Education and Culture
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Rekan penulisOrganisasiArtikel bersama
Ranisa JunitaUniversitas Jambi13
Sri WinarniUniversitas Jambi7
Marlina MarlinaUniversitas Jambi7
Sri WinarniUniversitas Jambi5
Zulkardi ZulkardiSriwijaya University4
Ratu Ilma Indra PutriSriwijaya University4
Kamid KamidUniversitas Jambi4
Marlina MarlinaInstitut Agama Islam Negeri Kendari4
Jefri MarzalUniversitas Jambi3
Yelli RamalisaUniversitas Jambi3
Erisa KurniatiUniversitas Jambi3
Erisa KurniatiUniversitas Jambi3
Meryansumayeka MeryansumayekaSriwijaya University2
Zahra AlwiSriwijaya University2
Syamsir SainuddinUniversitas Jambi2
Tria GustiningsiUniversitas Jambi2
Feri Tiona PasaribuUniversitas Jambi2
Kevin WaldoUniversitas Jambi2
Siti Enik MukhoiyarohUniversitas Jambi2
Risky AkbarUniversitas Jambi2
Sahala Martua AmbaritaSriwijaya University1
Yulianita MaharaniSriwijaya University1
Linda PuspitasariSriwijaya University1
Ranni PermatasariSriwijaya University1
Ninik Purwaning SetyoriniMinistry of Education and Culture1
A MeitrilovaSriwijaya University1
Sulafah Ansya SaskiyahSriwijaya University1
Jihan Adi PradyptaAfiliasi tidak diketahui1
Risda Intan SistyawatiSriwijaya University1
Samsuriyadi SamsuriyadiSriwijaya University1
Sisca Puspita SeprilianiSriwijaya University1
Ayu Luviyanti TanjungSriwijaya University1
Riszky Pabela PratiwiSriwijaya University1
Shinta AprilisaSriwijaya University1
Jayanti JayantiSriwijaya University1
Hani Luthfia AlzahraAfiliasi tidak diketahui1

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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"> Designing a Project-Based Learning Worksheet: Validity and Feasibility Evidence from the Geometrocity Project</dc:title>
	<dc:title xml:lang="id"> Designing a Project-Based Learning Worksheet: Validity and Feasibility Evidence from the Geometrocity Project</dc:title>
	<dc:creator xml:lang="en">Wibowo, Fadhia Aliva</dc:creator>
	<dc:creator xml:lang="en">Rohati, Rohati</dc:creator>
	<dc:creator xml:lang="en">Nusantara, Duano Sapta</dc:creator>
	<dc:creator xml:lang="en">Kumalasari, Ade</dc:creator>
	<dc:subject xml:lang="en">External Representation</dc:subject>
	<dc:subject xml:lang="en">Geometrocity</dc:subject>
	<dc:subject xml:lang="en">Mathematics</dc:subject>
	<dc:subject xml:lang="en">Project-based Learning</dc:subject>
	<dc:subject xml:lang="en">Student Worksheet</dc:subject>
	<dc:subject xml:lang="id">External Representation</dc:subject>
	<dc:subject xml:lang="id">Geometrocity</dc:subject>
	<dc:subject xml:lang="id">Mathematics</dc:subject>
	<dc:subject xml:lang="id">Project-based Learning</dc:subject>
	<dc:subject xml:lang="id">Student Worksheet</dc:subject>
	<dc:description xml:lang="en">Students often struggle to express mathematical ideas through multiple external representations, particularly when learning polyhedral geometry that requires coordination of visual, verbal, and symbolic forms. This study aims to design a project-based learning worksheet and examine its validity and feasibility through the Geometrocity project. In this activity, students construct a miniature city as a contextual medium to explore geometric concepts while engaging with structured representational tasks. The study follows the ADDIE development framework and is limited to the development stage. The focus lies on producing a valid and feasible learning tool rather than measuring classroom effectiveness. Two material experts and one media expert evaluated the worksheet using validation instruments that assess content accuracy, language clarity, instructional presentation, and graphical design. Quantitative ratings were analyzed using descriptive statistics, while qualitative feedback supported iterative product revisions. The results indicate that the Geometrocity worksheet achieved high validity scores across all assessed aspects and met the criteria for feasibility. These findings suggest that the worksheet is suitable for use in further implementation studies. This study contributes a project-based worksheet that integrates structured representational activities within contextual geometry tasks.</dc:description>
	<dc:description xml:lang="id">Students often struggle to express mathematical ideas through multiple external representations, particularly when learning polyhedral geometry that requires coordination of visual, verbal, and symbolic forms. This study aims to design a project-based learning worksheet and examine its validity and feasibility through the Geometrocity project. In this activity, students construct a miniature city as a contextual medium to explore geometric concepts while engaging with structured representational tasks. The study follows the ADDIE development framework and is limited to the development stage. The focus lies on producing a valid and feasible learning tool rather than measuring classroom effectiveness. Two material experts and one media expert evaluated the worksheet using validation instruments that assess content accuracy, language clarity, instructional presentation, and graphical design. Quantitative ratings were analyzed using descriptive statistics, while qualitative feedback supported iterative product revisions. The results indicate that the Geometrocity worksheet achieved high validity scores across all assessed aspects and met the criteria for feasibility. These findings suggest that the worksheet is suitable for use in further implementation studies. This study contributes a project-based worksheet that integrates structured representational activities within contextual geometry tasks.</dc:description>
	<dc:publisher xml:lang="en">Department of Mathematics Education, Faculty of Teacher Training and Education, Universitas Jambi</dc:publisher>
	<dc:date>2026-04-20</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/49315</dc:identifier>
	<dc:identifier>10.22437/edumatica.v16i1.49315</dc:identifier>
	<dc:source xml:lang="en">Edumatica : Jurnal Pendidikan Matematika; Vol. 16 No. 1 (2026): Edumatica: Jurnal Pendidikan matematika (April 2026); 88-107</dc:source>
	<dc:source xml:lang="id">Edumatica : Jurnal Pendidikan Matematika; Vol 16 No 1 (2026): Edumatica: Jurnal Pendidikan matematika (April 2026); 88-107</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/49315/24052</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2026 Fadhia Aliva Wibowo, Rohati Rohati, Duano Sapta Nusantara, Ade Kumalasari</dc:rights>
	<dc:rights xml:lang="en">http://creativecommons.org/licenses/by-nc-sa/4.0</dc:rights>
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