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Education has a very important role in forming a generation that is intelligent, creative and has the ability to think critically. This research aims to improve the learning understanding of class 10 students at SMA Negeri 1 Galang on GIS material through a Project Based Learning (PBL) learning model. This research can provide new insights into the use of the Project Based Learning approach as an effective learning method in teaching complex material. This research uses the Kemmis and Mc model. Taggart as a PTK procedure, which consists of two cycles. Each cycle consists of implementation, action, observation and reflection. From this research, it was found that the Project-Based Learning (PBL) learning model can improve the understanding of class 10 students at SMAN 1 Galang in Geographic Information Systems (GIS) material in geography subjects. This increase in understanding can be seen from the increase in the average value in the cycle -1 and cycle-2 application of the Project-Based Learning (PBL) model. The average value of students in cycle-1 was 81.94 and in cycle-2 there was an increase in the average value of students by 91.94. The implementation of the Project-Based Learning (PBL) model is considered successful in increasing students' understanding because they have achieved the predetermined success indicators.

This research is driven by the principles of Project Based Learning (PJBL). PJBL is an educational approach that utilizes real-world problems as the starting point for integrating new knowledge. The research question posed is whether the PJBL method affects motivation and interest in learning English among eleventh-grade students at SMAN 1 Karangrejo. The objective is to examine the impact of PJBL on motivation and interest in English learning at this school. This study employs a quantitative approach, specifically a non-experimental quasi-regression design, with data collection conducted via a questionnaire using purposive sampling. Data analysis involves descriptive statistics to determine mean values, followed by testing for normality assumptions. If the data meets normality criteria, Pearson correlation analysis is used to examine relationships between variables (X and Y1, X and Y2). Additionally, simple linear regression tests the effects of variables Y1 and Y2 on X. The findings indicate that implementing PJBL in English language education for eleventh-grade students is expected to enhance both motivation and interest in learning at SMAN 1 Karangrejo.

This study examines the effectiveness of Project Based Learning (PBL) in enhancing cross-cultural communication skills within international language education programs. As globalization increases, effective communication across cultures is essential, and language programs must equip students with these skills. PBL, a learner-centered instructional strategy, integrates real-world problems into the learning process, promoting student participation, collaboration, and critical thinking. The research found that students engaged in PBL showed significant improvements in communication competence, collaboration, and intercultural understanding compared to those in traditional lecture-based instruction. The study suggests that PBL not only enhances language proficiency but also fosters cultural awareness and empathy through projects involving cross-cultural collaboration and problem-solving. Furthermore, PBL offers a more effective platform for practicing language skills in real-world scenarios, as opposed to traditional methods focused on theoretical aspects. The findings demonstrate that PBL is particularly effective in international programs, where students from diverse cultural backgrounds work together to solve global issues, thus improving their ability to communicate and collaborate across cultures. The research concludes that integrating PBL into international language education programs significantly enhances students' cross-cultural communication skills. The study encourages educational institutions to adopt PBL and suggests further research on complementary strategies, including technology, virtual exchanges, and intercultural simulations.