Abstract
This study addresses the need for interactive mathematics learning media to improve
students’ understanding of the concept of exponents. The objective of this research is to develop and
evaluate Scratch-based learning media using the ADDIE model. This study employed a Research
and Development (R&D) method consisting of five stages: analysis, design, development,
implementation, and evaluation. Data were collected through expert-validation questionnaires, User
Acceptance Test (UAT) questionnaires, and conceptual-understanding tests administered before and
after the implementation of the media. The validation results indicated that the developed media and
learning materials were highly valid, with validity scores of 0.90 and 0.95, respectively. In addition,
the conceptual understanding test instrument was validated by a mathematics education expert and
was deemed suitable for assessing students’ understanding of exponent concepts. The User Acceptance
Test (UAT) was conducted with prospective mathematics teachers to evaluate the usability and
practicality of the developed media. In contrast, the implementation and learning outcome assessments
were conducted with students. The UAT results showed that the developed media was positively
evaluated by users, obtaining a score of 82.9%, which falls within the very good category. The
developed media provided interactive learning activities that encouraged students to actively engage
with concepts of exponents throughout the learning process. The results showed that students achieved
better learning outcomes, as evidenced by increases in their pretest and posttest scores. The average
N-Gain score of 0.84 was categorized as high, indicating an improvement in students’ understanding
of exponent concepts after using the developed media. The study resulted in a Scratch-based
multimedia learning media that was evaluated as highly valid and positively received by users. The
findings indicated improvements in students’ understanding of exponent concepts, while several usability
aspects, particularly related to device compatibility, may be further refined in future development.