Clustering is a data mining technique used for grouping data based on specific similarities. This study implements K-Means Clustering to analyze foreign tourist visit data in Indonesia in 2024. Using the Knowledge Discovery in Database (KDD) methodology, the research involves five stages: Data Selection, preprocessing, Transformation, data mining, and Evaluation. Data Clustering was conducted using RapidMiner software, experimenting with different cluster counts (k=2 to k=7) to determine the optimal number of clusters. Results indicate that three clusters (k=3) with the smallest Davies-Bouldin Index (DBI) value were optimal. This Clustering approach categorizes tourists into low, medium, and high visit groups, assisting policymakers in strategic tourism development. The findings support capacity planning and seasonal marketing strategies to optimize Indonesia's tourism sector.

Entrepreneurs engaged in the shopping sector have promising prospects because they can serve the lower and upper middle classes and provide convenience for people to buy everyday goods without having to go to supermarkets or convenience stores. However, if the availability of goods or materials needed is not optimally guaranteed, there may be a shortage of goods or materials needed. This also happens in some stores, where customers often run out of stock of various products and equipment they are looking for, but this is due to the lack of inventory management habits in the store. In this case, it is about finding out what products and needs are needed by store customers. This dataset uses several variables such as transaction date, product name, and sales or purchase amount by applying the apriori algorithm. The apriori algorithm is a type of association rule in data mining that is used to analyze and find correlation patterns. The data used in this study is a sample of 100 sales transaction data. The final association rule obtained from the transaction data is "If consumers buy Flour, they will buy Oil and Eggs" with a support percentage of 54% and a confidence of 96%. These results provide data on the names of the best-selling products, which can be used as an inventory estimate to avoid empty seats that can result in customer disappointment.

This study aims to analyze consumer behavior regarding the use of Sunsilk shampoo, including usage experience, duration, reasons for product choice, and customer satisfaction levels. A survey was conducted involving 93 respondents, addressing their experiences and preferences for Sunsilk shampoo. Results revealed that the majority of respondents have used Sunsilk, with product quality and affordable pricing being the primary reasons for their choice. The study also highlights areas for improvement to enhance customer loyalty and satisfaction, offering valuable insights for market strategies.

Assembling a personal computer and installing the Windows operating system are important activities in mastering information technology. This research aims to provide an in-depth understanding of the computer assembly process and operating system installation. The methods used include a Research and Development (R&D) approach, hands-on practice, and question-and-answer sessions. The research results show that systematic assembly steps and proper installation can produce a well-functioning computer. In addition, initial testing after assembly is crucial to ensure that all devices are detected correctly. It is hoped that this research can serve as a reference for information technology education and enhance students' practical skills in the field of computers.

This study aims to find the relationship between prospective biology teachers' ethnicity and teaching skills to preserve indigenous knowledge in Indonesia. The research intervention integrates the Science Integrated Learning (SIL) model with NGSS dimensions in the teaching practices of prospective biology teachers. The method chosen was embedded experimental with a quasi-experimental design consisting of three stages: a qualitative stage before, a qualitative stage during, and a qualitative stage after the intervention. The research targets were 60 prospective science teachers in two different cluster universities, each with 30 prospective teachers. Interpretation of quantitative and qualitative data in the form of statistical test results. The analysis of the comparison test using the t-statistic model obtained a difference in the average score of microteaching practice of 0.3, with an average of the first practice of 2,613 with a standard deviation of 0.3024 and the second practice of 2,921 with a standard deviation of 0.3122. The second microteaching practice experienced an increase in scores from the first practice. The study concluded that prospective biology teachers' skills in preserving indigenous Indonesian traditional knowledge can be realized through the SIL Model integrated with NGSS.  The research results allow prospective teachers to utilize students' experiences as learning sources and hopefully can contribute on the development of prospective teacher education policies oriented toward preserving Indigenous knowledge in Indonesia.
 

In learning activities, there are many methods that teachers can use in teaching, one of which is the varied lecture method. However, this varied lecture method is often considered boring by students. History teachers are one of the teachers who often use the lecture method, whether it's varied lectures or regular lectures. This is one of the reasons students think history is boring. When students feel bored while studying, the learning outcomes obtained by students will decrease. In this case the author aims to see whether varied lecture methods are still effective for use in learning so that they can improve student learning outcomes. The method in this research is a quantitative method using an approach in the form of direct observation. The population of this study was Class 11 of SMA Negeri 1 Sungai Pinang with the sample taken being Class 11 IPS2, totaling 20 people. The research results obtained were that student learning outcomes increased by 36.5% with pre-test results of 31.5% and post-test results of 68%. This means that varied lecture methods are still effective for use in the learning process because they are able to improve student learning outcomes. 

Political education is one of the most important methods to prepare the younger generation to not only understand their rights and obligations in politics, but also have self-confidence in political parties. This study was conducted at the State Islamic University of North Sumatra (UINSU) to identify organizational practices in providing political education to students. Data collection was carried out using qualitative methods and case study designs, with 20 respondents from the organizational community, as well as observation and document analysis. The findings show that student organizations make a significant contribution to increasing student participation in politics through various activities such as leadership training and public discussions. However, issues such as active participation and students' understanding of politics are the main focus. Therefore, political education through student organizations must continue to be developed in order to better prepare students to become critical thinkers with integrity in everyday life.

This study aims to analyze the perception of sounds in Arabic language learning at SMA Negeri 3 Medan. Sound perception refers to students' ability to recognize and produce sounds in Arabic, which often differ from sounds in the Indonesian language. This research identifies phonological difficulties experienced by students, the factors influencing their sound perception, and the teaching methods employed to address these challenges. The research methodology used is qualitative with a case study approach, involving observations, interviews, and phonology tests with 30 students and several Arabic teachers at SMA Negeri 3 Medan. The results show that students face major difficulties in distinguishing and producing certain sounds, such as the letters " ? " (ain) and " ? " (qaf), which do not exist in Indonesian. Psychological factors, such as lack of self-confidence, as well as teaching methods that lack structure in phonological instruction, exacerbate the difficulties students face. This study recommends giving more attention to phonological teaching, utilizing technology, and implementing blended learning methods to enhance students' sound perception in Arabic.

Student character development is one of the main goals of education, especially in madrasas based on Islamic teachings. However, there are still many students who have difficulty internalizing Islamic values in their daily lives. This is influenced by a lack of spiritual understanding, weak self-control, and less than optimal guidance methods. Islamic counseling, which is based on the principles of the Qur'an and Hadith, is a relevant holistic approach to strengthen students' Islamic character through the cultivation of spiritual, intellectual, and social values. This study aims to analyze the effect of Islamic counseling on students' character building in madrasah, identify the most affected character aspects, and provide recommendations for integrating Islamic counseling services into the Guidance and Counseling program. Using a qualitative approach with a case study method, the research involved in-depth interviews, participatory observation, and document analysis. Data were collected from students, guidance teachers, and homeroom teachers to explore the experience and impact of Islamic counseling on students' characters, such as honesty, responsibility, discipline, and empathy. The results showed that Islamic counseling is effective in improving student character, especially in terms of self-control and social interaction. The findings support the importance of integrating Islamic counseling services as part of the educational program in madrasah to achieve more optimal character building. This research is expected to contribute to the development of a structured and effective Islamic counseling program.

The study conducted at the National Potential Young Athletes Training Center (SLOMPN) of Unesa provides a crucial perspective on the use of an Android-based match statistics application. The research aims to optimize athletes' potential through the Long Term Athlete Development (LTAD) approach, integrating knowledge of athlete development with the application of technology in training. The survey results from 5 coaches indicate that the application aids in planning training, understanding application features, and assessing athlete development with positively skewed average scores. However, there is room for improvement, especially in terms of comfort during matches and communication with athletes. Meanwhile, 18 athletes showed positive acceptance of the application by rating its ease of use and impact on performance enhancement highly. Nevertheless, there is a need for improvement in injury recovery features and data security. This study underscores the importance of continuous collaboration between application developers and users to enhance the effectiveness of technology in sports training.