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All Journal International Journal on Education Insight
Nurhidayanti, Santi
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Education Languange, Linguistic, Communication & Media Mathematics Other

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Developing PBL-based worksheet to foster self-confidence and problem-solving skills in learning transformation geometry Nurhidayanti, Santi; Nurnugroho, Burhanudin Arif
International Journal on Education Insight Vol. 7 No. 1 (2026)
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/ijei.v7i1.15532

Abstract

This research aims to develop a valid and practical Problem-Based Learning (PBL) student worksheet to facilitate them fostering their self-confidence and problem-solving skills in learning transformationa geometry. Using the ADDIE model, this research involved 20 ninth-grade students of a private junior high school in Yogyakarta to learn the concepts of reflection and rotation using the worksheet. The worksheet integrates PBL syntax, self-confidence descriptors, and Polya's problem-solving indicators. The validation by experts and teachers yielded an average score of 90.36% (very high), while the students’ response on the worksheet practicality yielded an averagfe scores of 90% (small group) and 88.75% (large group). The scores mark a very practical indicator of the worksheet. The existence this worksheet enriches the best practices of the efforts to foster self-confidence and problem-solving skills among students.
Co-Authors Burhanudin Arif Nurnugroho