Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal Jurnal PAJAR (Pendidikan dan Pengajaran) Mathematics Education Journal
Hevardani, Kelly Angelly
Unknown Affiliation
Education Mathematics Other

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Analysis of Concept Construction and Student Errors on the Topic of Double Integral Based on APOS Theory Yarman, Yarman; Yerizon, Yerizon; Dwina, Fitrani; Murni, Dewi; Hevardani, Kelly Angelly
Mathematics Education Journal Vol. 18 No. 3 (2024): Jurnal Pendidikan Matematika
Publisher : Universitas Sriwijaya in collaboration with Indonesian Mathematical Society (IndoMS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22342/jpm.v18i3.pp367-386

Abstract

Integral learning is particularly challenging for students, primarily due to misconceptions predominantly caused by students' lack of understanding about functions, limits, and derivatives. Therefore, this research aims to investigate students’ thinking processes when solving double integral using Action, Process, Object, and Schema (APOS) theory, with a focus on past errors. In order to achieve the objective, a descriptive qualitative method was adopted. Data was collected from tests, interviews, and relevant documentation, and tested for validity using triangulation methods. The obtained results showed that high-ability students understood APOS stages in solving double integral. However, at the object stage, a lack of thoroughness in simplifying algebra led to misunderstandings. Medium-Ability Student (MS) was observed to successfully reach APOS stages when solving double integral using polar coordinates. Low-Ability Student (LS), on the other hand, showed inadequate understanding at the process stage, as evidenced by the failure to correctly draw the area and set integral boundaries. During the course of this investigation, process errors were found to be commonly associated with the calculations of double integral. In order to address these issues, Genetic Decomposition (GD) should be designed for other calculus topics, and error classification expanded to enhance the effectiveness of lectures.
Analysis of Policies on Teacher and School Principal Performance Management In Indonesia: A Literature Review Hevardani, Kelly Angelly; Hadiyanto; Gistituati, Nurhizrah
Jurnal PAJAR (Pendidikan dan Pengajaran) Vol. 9 No. 6 (2025): November
Publisher : Laboratorium Program Studi Pendidikan Guru Sekolah Dasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33578/pjr.v9i6.314

Abstract

Effective performance management of teachers and school principals is a critical determinant of educational quality and institutional accountability. This study analyses national policies and regulatory frameworks governing performance management within the education sector, drawing upon official policy documents, national regulations, and implementation reports. Employing a literature-based and policy analysis approach, the study identifies significant gaps between policy formulation and practical implementation at the school level. The findings reveal persistent challenges, including limited comprehension of performance indicators, inadequate monitoring and evaluation mechanisms, and insufficient resource support. The analysis underscores the need to strengthen managerial competencies, enhance professional development, and establish equitable and sustainable performance evaluation systems. Overall, the study highlights the importance of developing a more adaptive and context-responsive performance management model to promote continuous improvement in educational quality and leadership effectiveness.
Co-Authors Dewi Murni Dwina, Fitrani Hadiyanto Nurhizrah Gistituati Yarman Yarman, Yarman Yerizon Yerizon