INNOVATION IN AN INTERACTIVE WEBSITE-BASED TEACHING MATERIALS OF INDONESIAN LANGUAGE FOR FOREIGN SPEAKERS CONTAINING THE NAMES OF FOODS DURING THE RELIGIOUS CELEBRATIONS IN INDONESIA

This research was motivated by the lack of Indonesian Language for Foreign Speakers (BIPA) teaching materials that thematically address the vocabulary of food names during religious celebrations in Indonesia, as well as the high demand for digital-based, contextual materials among learners and teachers. The purpose of this research was to develop BIPA teaching materials containing food names during Islamic, Christian, Catholic, Hindu, Buddhist, and Confucian religious celebrations in the form of an interactive website and to test its effectiveness in improving learners' vocabulary mastery. This research used a research and development method with the ADDIE model, which includes analysis, design, development, implementation, and evaluation. The study participants consisted of 50 BIPA learners and 20 BIPA teachers randomly selected from various universities and course institutions. Data collection was conducted through a needs questionnaire, expert validation instrument, and learning outcome test (pre-test and post-test). The data were analyzed using descriptive statistics, paired sample t-tests, and N-Gain. Expert validation results indicated that the product obtained an Aiken's V score of 0.846, categorized as very feasible. Implementation of the product with 50 learners resulted in an average score increase from 66.1 (pre-test) to 88.3 (post-test). The paired sample t-test results showed a t-stat of 13.62 > t-critical of 2.01 with a p-value of 2.77E-18 (<0.05), confirming that the use of the interactive website significantly improved learning outcomes. The N-Gain result of 0.634 fell into the moderate category, indicating the product's effectiveness in proportionally increasing vocabulary mastery. This research has implications for the development of BIPA teaching materials that are contextual, integrated with digital technology, and responsive to the needs of 21st-century learning.