This study aims to develop a mathematics module on the infinite limit material of algebraic functions to improve critical thinking skills of phase-F students at SMA Muhammadiyah 1 Sleman. The study used the ADDIE development model which includes five stages: Analysis, Design, Development, Implementation, and Evaluation. Data were collected through material and media expert validation questionnaires, student response questionnaires, and pretest and posttest tests. The validation results showed that the module was classified as very valid, with an average score of 71 from material experts and 103 from media experts. The student response questionnaire produced a practicality score of 72.6, indicating that the module was practical to use. The effectiveness test was carried out using the normality test and paired sample t-test using SPSS-25, which showed a significant increase (p <0.05) in student learning outcomes. The average pretest score of 58.22 increased to 84.27 in the posttest, with an n-Gain value of 0.64 which is classified as moderate. This module also improved scores on all indicators of students' critical thinking. Thus, the developed e-module is declared valid, practical, and effective in improving students' conceptual understanding and critical thinking skills

The primary objective of this activity was to enhance students' understanding of the critical importance of instilling and practicing the values of Pancasila as a means to confront the growing threat of radicalism in the era of globalization. This event was conducted at Muhammadiyah Seyegan Vocational School and engaged 25 twelfth-grade students in a dynamic and interactive dialogue session. The program featured a knowledgeable resource person who delivered an in-depth presentation on a specific theme, which was followed by an engaging discussion to explore and reflect upon the key points shared. The outcomes of the dialogue revealed that the values embedded within Pancasila are not only foundational but also remain highly relevant and applicable in addressing contemporary challenges. This initiative sought to provide students with a clearer understanding of Pancasila as a comprehensive national worldview, a philosophical cornerstone of Indonesia, and a guiding principle for governance and citizenship. Beyond theoretical understanding, the activity encouraged participants to internalize Pancasila's principles in their daily interactions and decisions, fostering a commitment to embody these values in their personal lives, within their families, in community settings, and in their contributions to national and state affairs. Through this approach, the program aimed to cultivate a sense of responsibility and pride in upholding Pancasila as a unifying and protective force against radicalism