Developing Unimath: A Thorndike-Integrated Interactive Web to Improve High School Students’ Numerical Ability

Authors

  • Sulthon Aulia Jati UIN Sunan Gunung Djati, Bandung, Indonesia
  • Rahayu Kariadinata UIN Sunan Gunung Djati, Bandung, Indonesia
  • Rikrik Nurdiansyah UIN Sunan Gunung Djati, Bandung, Indonesia

DOI:

https://doi.org/10.22460/jiml.v9i3.33259

Keywords:

Thorndike Theory , Interactive Web , Numerical Ability , 4D Development Model , Mathematics Education

Abstract

Numerical ability is essential for interpreting quantitative information, yet Indonesian students often experience difficulty with contextual mathematical problems. Structured web-based practice may address this need when repetition, feedback, and remediation are pedagogically integrated. This study aimed to develop and evaluate UniMath, a Thorndike-integrated web platform for high school students. Research and development followed the 4D model: Define, Design, Develop, and a limited Disseminate stage. Needs data were collected from 34 students and one mathematics teacher, while the main implementation involved 36 Grade X students selected through cluster random sampling. Product feasibility was examined by media and subject-matter experts. Operational change was assessed using a one-group pretest-posttest design, Practice Mode logs, and normalized gain, whereas practicality was evaluated through a 15-item questionnaire and written interviews with six purposively selected students. The media expert judged UniMath feasible after five minor revisions, and the subject-matter expert judged it feasible without revision. Across two practice days, 3,615 attempts were recorded, accuracy increased from 64.02% to 80.64%, the mean score increased from 45.00 to 69.72, and normalized gain reached 0.449 (moderate); practicality was 82.22% (very practical). UniMath was feasible, showed moderate within-class improvement, and was highly practical, although causal inference and broader generalization remain limited.

Author Biography

Sulthon Aulia Jati, UIN Sunan Gunung Djati, Bandung, Indonesia

Mathematics Education Study Program, Faculty of Tarbiyah and Teacher Training, Universitas Islam Negeri Sunan Gunung Djati Bandung

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Published

2026-09-26

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Vol. 9 No. 3 (2026): VOLUME 9 NUMBER 3, SEPTEMBER 2026

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