Developing an Ethnoscience-Oriented Electrochemistry Worksheet Based on the Indigenous Practice of Metal Container Electroplating Used in Balinese Traditional Ceremonies

Integrating culturally relevant ethnoscientific contexts into chemistry education has the potential to support more meaningful and culturally responsive learning. This study aimed to develop and evaluate an ethnoscience-oriented electronic worksheet based on the indigenous Balinese practice of electroplating bokor and dulang, metal containers used in traditional Balinese ceremonies. The study adopted an educational design research approach using the ADDIE model. The ethnoscientific reconstruction was conducted through document analysis and literature review to connect indigenous electroplating practices with electrochemical concepts. The developed worksheet was subsequently evaluated through expert validation involving five experts and a limited classroom implementation with 29 secondary school students to examine its educational feasibility. Data were collected using validation sheets and students’ response questionnaires and were analyzed using Aiken’s V coefficient and descriptive statistics. The expert validation indicated a high level of validity (Aiken’s V = 0.86), supporting the scientific, pedagogical, and cultural appropriateness of the developed learning material. The limited classroom implementation showed positive student responses regarding the worksheet’s contextual relevance, usability, and learning engagement. The findings provide preliminary evidence that the developed worksheet was appropriate for classroom use for contextualizing electrochemistry through indigenous knowledge and may serve as a practical reference for culturally responsive chemistry education.