Aeryn Meiska Putri Bangun
Universitas Singaperbangsa Karawang

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

Found 2 Documents
Search

Developing ADDIE-Based Animated Mathematics Videos to Enhance Vocational High School Students’ Conceptual Understanding of Circle Geometry Aeryn Meiska Putri Bangun; Ekasatya Aldila Afriansyah; Adi Ihsan Imami
Jurnal Didactical Mathematics Vol. 8 No. 2 (2026): Oktober 2026
Publisher : Program Studi Pendidikan Matematika, Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/dm.v8i2.18193

Abstract

The integration of digital media into mathematics education has become increasingly important for addressing students’ difficulties in understanding abstract mathematical concepts, particularly in geometry topics such as circles. However, mathematics instruction in vocational high schools is still frequently dominated by conventional teaching methods with limited use of interactive learning media. This study aimed to develop and evaluate Canva-based animated mathematics learning videos to enhance students’ conceptual understanding of circles at SMKN 1 Karawang. The research employed a Research and Development design using the ADDIE model, consisting of analysis, design, development, implementation, and evaluation stages. The participants included 29 students in the experimental class and 15 students in the control class. Data were collected through expert validation sheets, practical questionnaires, observation, and essay-based learning outcome tests. Data analysis involved descriptive percentage analysis, the Shapiro–Wilk normality test, and the Mann–Whitney U test, all conducted in RStudio. The validation results showed that the developed media achieved an overall validity score of 87%, categorized as very valid. The practicality test obtained a score of 76%, indicating that the media was sufficiently practical for classroom use. Furthermore, the effectiveness test revealed a significant difference between the experimental and control groups (W = 357.5, p = 0.0004827 < 0.05), demonstrating that the animated learning videos improved students’ conceptual understanding of circles. The findings indicate that Canva-based animated videos can serve as valid, practical, and effective interactive learning media for supporting mathematics instruction in vocational education contexts
Mapping Epistemological Obstacles in Junior High School Students' Statistical Word-Problem Solving: A Systematic Literature Review Aeryn Meiska Putri Bangun; Adi Ihsan Imami; Rina Marlina
Jurnal Didactical Mathematics Vol. 8 No. 2 (2026): Oktober 2026
Publisher : Program Studi Pendidikan Matematika, Universitas Majalengka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31949/dm.v8i2.18712

Abstract

Statistical word problems require students to integrate conceptual understanding, procedural competence, and computational skills to interpret and represent data meaningfully. However, the epistemological obstacles underlying students' difficulties in solving such problems remain fragmented across individual studies. This study aimed to synthesize empirical evidence on the epistemological obstacles experienced by junior high school students in statistical word-problem solving and to examine the relationships among conceptual, procedural, and operational obstacles. A Systematic Literature Review (SLR) was conducted following the PRISMA 2020 guidelines. Literature published between 2019 and 2026 was identified through Google Scholar, ERIC, and Garuda. After applying predefined eligibility criteria and quality assessment procedures, 24 empirical studies were included in the qualitative synthesis. Data were analyzed using qualitative content analysis and thematic synthesis. The review identified three dominant categories of epistemological obstacles. Conceptual obstacles were the most prevalent, appearing in 20 studies, followed by procedural obstacles in 17 studies and operational obstacles in 14 studies. The synthesis further revealed that these obstacles formed a progressive and interconnected pattern. Incomplete conceptual understanding constrained students' procedural decision-making, while procedural deficiencies subsequently increased the likelihood of operational errors during statistical problem solving. These findings suggest that students' statistical learning difficulties should be understood as an integrated system of epistemological obstacles rather than isolated categories of error. The review proposes a progressive framework of epistemological obstacles and highlights the importance of strengthening conceptual understanding through contextualized learning, multiple representations, and formative assessment to support meaningful statistical reasoning.