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All Journal International Journal of Evaluation and Research in Education (IJERE) Rangkiang Mathematics Journal Jurnal Edukasi dan Penelitian Matematika
Kelly Angelly Hevardani
Universitas Negeri Padang
Education Mathematics Other

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VALIDITAS DAN PRAKTIKALITAS HYPOTHETICAL LEARNING TRAJECTORY (HLT) TOPIK INTEGRAL BERBASIS RME BERBANTUAN GEOGEBRA Kelly Angelly Hevardani
Jurnal Edukasi dan Penelitian Matematika Vol 10, No 2 (2021): Juni
Publisher : Departemen Matematika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pmat.v10i2.11525

Abstract

Based on the results of preliminary research, it was found that integral learning tended to use existing textbooks and there was no use of technology in teaching materials. This study aimed to developing instructional design with RME assisted by GeoGebra on topic integral. This study that was combined Plomp and Gravemeijer & Cobb models, which consisted of three phases, namely preliminary research, development or prototyping phase, and assessment phase. The learning design in question is HLT which is implemented on student worksheets. This HLT consists of three components, namely the learning objectives, a series of student activities, and predictions of student answers and anticipations that must be done by the teacher. The subjects of this study were students of class XI SMAN 8 Padang. The data collection instrument used were interview sheets, observation sheets, questionnaires, and test on mathematical reasoning abilities. The results showed that the intructional design based on RME assisted by GeoGebra, especially topic integral can be said to be valid and practical.Keywords-RME, Integral, GeoGebra, HLT
Student’s creative thinking based on study level, learning style, gender, and combination of the three Edwin Musdi; Abdur Rahman As'ari; Yulyanti Harisman; Hamdani Syaputra; Kelly Angelly Hevardani
International Journal of Evaluation and Research in Education (IJERE) Vol 13, No 3: June 2024
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijere.v13i3.27936

Abstract

All students from every level of education should have excellent and adequate creative thinking, but in Indonesia students’ creative thinking is still low. There are a lot of factors that affect creative thinking, such as learning styles. This study aimed to investigate the comparison of students’ creative thinking based on study level and learning styles, gender, and the combination of the three to determine which factor or type of students needs to be improved. This research uses a statistics descriptive method. The participants of this study were 38 senior high school students, 35 students of the teacher professional program (PPG), 24 undergraduate students (S1), and 12 master program students (S2). The instrument used in this study is a learning styles Learning style test to determine the student’s learning styles and creative thinking questions to classify the students. The results of this study are i) Students’ level of study does not determine their creativity level; ii) Based on gender, female is more creative than a man; iii) Based on the learning style, visual students is the best, followed by kinesthetic and auditory in order; and iv) Merdeka curriculum of Indonesia, nowadays, is essential to make the best learning process to improve students’ creative thinking.
Evaluation of the Implementation of GeoGebra-assisted Advanced Calculus Courses Using the CIPP Model Kelly Angelly Hevardani; Ambiyar; Yerizon; Yarman
Rangkiang Mathematics Journal Vol. 4 No. 1 (2025): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/rmj.v4i1.61

Abstract

This study aims to evaluate the implementation of advanced calculus courses assisted by GeoGebra using the CIPP model. This evaluation assessed the relevance, effectiveness, and results of applying GeoGebra as an interactive learning medium. The research approach was descriptive quantitative, with data collection through questionnaires and observations. The research subjects were 36 students who attended advanced calculus courses at FMIPA Universitas Negeri Padang in the July–December 2024 semester. The evaluation results show that in the context aspect, the use of GeoGebra is aligned with the curriculum objectives that support the mastery of advanced mathematical concepts and visualization skills. Regarding input, lecturers have basic competence in using GeoGebra, but not all students are familiar with this software. In terms of process, GeoGebra-assisted learning is interactive, although it is constrained by students’ adaptation time to the software. In terms of product, the evaluation results showed increased students’ analytical skills and conceptual understanding, although the increase in exam results was not significant overall. The findings recommend the need for intensive training for lecturers and students related to the use of GeoGebra, the provision of technology-based learning guides, and adjustments to lecture strategies to maximize the effectiveness of GeoGebra in supporting advanced calculus lectures.  
Co-Authors Abdur Rahman As’ari Ambiyar, Ambiyar Edwin Musdi Hamdani Syaputra Yarman Yerizon Yulyanti Harisman