<![CDATA[Geometric transformation remains a challenging topic for students due to its abstract nature and the requirement for strong visualization skills. Consequently, many students struggle to grasp the concepts, determine transformation outcomes, and solve problems related to geometric transformations. While various studies have developed ethnomathematics-based teaching materials to support mathematics learning, there is a scarcity of learning modules that integrate Tulungagung Batik ethnomathematics with the values ??of the "Love-Based Curriculum" (Kurikulum Berbasis Cinta) specifically for geometric transformation topics. This study aimed to produce a geometric transformation learning module based on Tulungagung Batik ethnomathematics and the Love-Based Curriculum, as well as to evaluate the module's validity, practicality, and effectiveness. The study employed the Research and Development (R&D) method using the ADDIE model, comprising the stages of Analysis, Design, Development, Implementation, and Evaluation. It was conducted at MTsN 5 Tulungagung. Module validity was assessed by subject matter, media, and language experts; practicality was measured via teacher and student response questionnaires; and effectiveness was analyzed using Normalized Gain (N-Gain) scores. The results indicated that the module achieved a validity rating of 90%, placing it in the "highly valid" category. Teacher and student responses reached 91% and 92.50%, respectively, both falling into the "highly practical" category. The effectiveness test yielded an N-Gain score of 0.82, indicating a "high" level of effectiveness. The findings demonstrate that the developed module is suitable for use in teaching geometric transformations. It effectively bridges mathematical concepts with the local wisdom of Tulungagung Batik and reinforces the implementation of Love-Based Curriculum values ??within the learning process]]>
