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This research develops a machine learning model to classify customer loyalty using the Random Forest algorithm. Customer churn is a critical issue that reduces revenue and increases acquisition costs. A dataset of 50,000 customers from global e-commerce and subscription platforms was processed through data cleaning, imputation, outlier handling, and class balancing with SMOTE. The Random Forest model was built as a baseline and optimized with hyperparameter tuning. Evaluation using accuracy, precision, recall, and F1-score shows that the optimized model achieved 90.81% accuracy and 83.87% F1-score, outperforming previous Naïve Bayes approaches. Feature importance analysis highlights customer service interactions, lifetime value, and demographic factors as key predictors of churn. These findings demonstrate Random Forest’s effectiveness in churn prediction and provide practical insights for customer retention strategies

A suitable and targeted marketing plan is required because of the intense competition in the retail drinking water sector. Customer segmentation using RFM (Recency, Frequency, and Monetary) analysis is one of the techniques employed. Additionally, K-Means clustering, a clustering technique based on machine learning, is employed. This study's goal is to present the findings in the form of graphs that can be used to examine consumer trends according to their attributes. With a value of 10286, the Calinski Harabaz index is a suitable metric to move on to the segmentation step in this study, which also tests three metrics using the clustering method. An ideal cluster is created for every cluster evaluation by dividing the Calinski Harabaz index into three more manageable clusters. This contrasts with other evaluation metrics that only yield two clusters. For instance, when XYZ drinking water sales transaction data was distributed, it was discovered that, out of the total drinking water sales, woodsale had 422 customers, diamond had 1061 customers, and star diamond had 2005 customers. The management of the XYZ drinking water company and other marketing fields are expected to encounter more intense competition as a result of the study's findings.

Islamic boarding schools (Islamic boarding schools) are required to integrate classical scholarly traditions and modern education, one way of doing this is through the integration of the study of yellow books (tahfidzul Qur'an) and Qur'an memorization (tahfidzul Qur'an). The Baitul Abidin Darussalam Wonosobo Tahfidzul Qur'an Islamic Boarding School implements an integrative learning system to balance Qur'an memorization and understanding of Islamic law (shari'a). However, it still faces obstacles such as a tight schedule, different methods, and weak coordination and evaluation. This study examines the implementation patterns, challenges, and impacts of this system, with the hope of serving as a reference for developing a balanced and sustainable model of Islamic boarding school education. This research uses a qualitative approach with a case study design to understand in-depth the implementation of the integrative learning system between Qur'an memorization and the study of yellow books (tahfidzul Qur'an) at the Baitul Abidin Darussalam Wonosobo Islamic Boarding School (PPTQ). Subjects were selected purposively, including the boarding school administrator, tahfidz teachers, yellow book teachers, and students. Data were collected through in-depth interviews, participant observation, and documentation studies. Data analysis was conducted interactively using the Miles and Huberman model, which encompasses data reduction, data presentation, and conclusion drawing and verification to obtain a holistic and contextual understanding. The discussion shows that the integrative learning system in Islamic boarding schools is implemented through a balanced daily schedule between Quran memorization and yellow book study, allowing memorization, understanding, and moral development to occur simultaneously within the students' daily routines. Integration is achieved structurally through scheduling, methodologically by linking verse memorization with book study, and culturally through the instillation of values, etiquette, and pesantren traditions. The success of integration is supported by the exemplary behavior of the kiai (Islamic teachers) and ustadz (Islamic teachers), the religious environment, and the motivation and discipline of the students, despite challenges such as busy schedules, physical exhaustion, differences in student abilities, and limited facilities. The impact of implementing this system is seen in the improved quality of contextual memorization, a more critical understanding of the scriptures, the formation of disciplined and moral character, and the holistic spiritual development of students.

This study aims to evaluate the implementation of the At-Turats Book Study Program using the Context, Input, Process, and Product (CIPP) evaluation model to provide an overview of the program’s relevance, resource readiness, implementation, and outcomes. The research method used is descriptive qualitative, with data collection techniques through observation and interviews. The results show that in terms of context, the study of classical texts meets the needs of the santri and aligns with the vision of Ma’had Al-Jami’ah, which aims to deepen religious and cultural understanding. In terms of input, the program is supported by qualified instructors and representative classical reference books, although there are still limitations in the number of teachers, the varying abilities of the santri, and supporting facilities. Regarding the process, the study is carried out using the halaqah method with a bandongan approach, which is relatively consistent, although the participation and interaction of the santri are limited. Some santri are still hesitant to engage actively in discussions, which can reduce the effectiveness of learning. In terms of product, the program has a positive impact, including an improvement in religious understanding, the development of more moderate and tolerant religious attitudes, and enhanced ability to comprehend classical texts among some of the santri. Overall, the program has achieved its main objectives but still requires improvement in terms of facilities and interaction during the learning process.

This study aims to examine the role of mathematics education in building numerical literacy in elementary schools, as well as strategies that can be implemented to enhance students' numerical skills. Numerical literacy is a fundamental skill needed by students to understand, interpret, and use numerical information in daily life. The research method used is library research, reviewing various related literature, including books and recent scholarly journals in the field of mathematics education. The results show that the integration of technology, the use of contextual approaches, and collaborative learning are effective strategies in improving students' numerical literacy. Technology helps simplify the understanding of abstract concepts, while contextual and collaborative approaches make mathematics more relevant and applicable. The implications of these findings are the need for further development in teacher training to integrate technology in teaching and the importance of involving students in more interactive and contextual learning processes. This study also suggests further evaluation of the implementation of these strategies in various educational settings.

This study aims to systematically analyze the implementation of formative and summative assessments in Grade IV Islamic Religious Education (PAI) at SDN 2 Konda within the framework of the Merdeka Curriculum. The research employs a qualitative approach with a case study design to obtain an in-depth and contextual understanding of classroom assessment practices. Data were collected through classroom observations, in-depth interviews with teachers, the principal, and parents, as well as an analysis of curriculum documents and various assessment instruments used throughout the learning process. The data were analyzed using thematic coding techniques supported by NVivo software, guided by the Formative Summative Continuum framework to examine the alignment and integration between both assessment types. The findings indicate that teachers have regularly implemented formative assessment through digital quizzes, direct observation, reflective discussions, and continuous feedback, which have increased student participation and strengthened competency mastery. Meanwhile, summative assessment was conducted at the end of the semester through written tests and project-based assignments; however, it still primarily emphasizes cognitive aspects and has not fully integrated formative assessment evidence. The study also identifies limitations in the use of multidimensional rubrics, continuous portfolio management, and meaningful parental involvement in the overall evaluation process.

This study aims to develop a pop-up book learning medium with the theme “Einkaufen” (Shopping) as a German language instructional medium for Grade XI students at SMA Negeri 3 Binjai. The background of this study is the low level of students’ understanding of the learning materials and their lack of learning motivation due to the use of monotonous conventional media. This research employs a Research and Development (R&D) approach using the ADDIE development model, which includes the stages of Analysis, Design, Development, Implementation, and Evaluation. The results of the implementation stage indicate that 98.3% of students agreed that the pop-up book is effective for use in German language learning, and 96.7% stated that the material content is easy to understand. The pop-up book consists of six pages containing learning materials and exercises that focus on reading, writing, and speaking skills. Validation by material and media experts yielded a score of 90, categorized as very good. These findings demonstrate that the developed pop-up book medium is not only visually engaging but also capable of enhancing students’ motivation and comprehension in an integrative German language learning process. This medium can serve as an effective alternative for improving the quality of foreign language learning at the secondary school level.

This study aims to evaluate the effectiveness of the Tahsin Qur'an program at Ma'had Al-Jamiah IAIN Kendari using the Goal Free Evaluation model. This evaluation emphasizes tangible results without being tied to the initial objectives of the program. This study uses a descriptive qualitative approach through observation, interviews, and documentation. The results indicate that the program has had a significant positive impact: participants showed improved reading ability in hijaiyah letters, mastery of basic tajweed, and increased self-confidence and spiritual closeness to the Quran. The high level of participant attendance and consistent enthusiasm for learning indicate active involvement in the learning process. The program has also proven to be able to create a conducive and sustainable learning community, even though it is run voluntarily without financial incentives. Several recommendations for development include the provision of advanced classes, improvement of learning materials, and increasing reach and wider support. This evaluation confirms that the andragogy-based tahsin learning approach is highly relevant for Quranic education for adults and deserves further development.

This study aims to compare the performance of Multiple Linear Regression (MLR) and Random Forest Regression (RFR) in predicting student performance based on academic scores. Student performance is defined as the average of math scores, Reading Scores, and writing scores. This study uses a quantitative approach with a comparative design based on predictive modeling. The data used is secondary data from the Student Prediction dataset obtained through the Kaggle platform, which was processed using the Python programming language through the Google Colab platform. The analysis stages included the formation of performance variables, the separation of training and test data with a ratio of 80:20, model training, and evaluation using the Mean Squared Error (MSE), Mean Absolute Error (MAE), and coefficient of determination (R²) metrics. The results show that the Multiple Linear Regression model produced an MSE value of 2.74 × 10⁻²⁸, an MAE of 1.51 × 10⁻¹⁴, and an R² of 1.000. Meanwhile, Random Forest Regression produced an MSE of 0.296, an MAE of 0.375, and an R² of 0.998. These findings indicate that both models have a very high level of accuracy, but Multiple Linear Regression provides the best performance. This is due to the strong linear relationship between the input variables and the target variables formed directly from the combination of academic values. Thus, the linear regression model is proven to be more suitable for use in data structures that have simple linear relationships compared to ensemble-based models.

This community service activity aims to strengthen students’ soft skills and hard skills through public speaking and computer network cabling training at SMA Negeri 1 Sorong City. The activity's background is rooted in the state of computer learning, which still focuses on the introduction of software and hardware, while communication skills and computer network practices have not been fully developed. The method for implementing the activity uses an experiential learning approach, comprising the planning, socialization, training, and evaluation stages. Soft skills training is focused on improving public speaking skills through public speaking practice, while hard skills training is carried out through direct practice of computer network cabling using UTP cables and supporting devices. The results of the activity show an increase in students’ communication skills and self-confidence, as well as an increase in students' understanding and technical skills in computer network cabling. This activity provides an applicable learning experience and strengthens the synergy between universities and high schools in developing student

Science education in elementary schools requires the active involvement of students through meaningful learning experiences. One of the essential subjects in fourth grade elementary school is the growth and development of animals and plants. However, science education is still often conducted conventionally, so that students' scientific process skills have not developed optimally. This study aims to analyze and describe the application of the Project-Based Learning (PjBL) model in science learning projects on the growth and development of animals and plants with the support of Seesaw and Flashcard Quizlet digital media through a Systematic Literature Review (SLR) approach. The research method used SLR with a descriptive qualitative approach to relevant scientific articles published between 2019 and 2025. The results of the study show that the application of PjBL can increase student learning activity, scientific process skills, and understanding of science concepts. The use of Seesaw was effective as a medium for project documentation and reflection, while Flashcard Quizlet helped reinforce concepts and formative evaluation. Thus, the integration of PjBL, Seesaw, and Quizlet can be an innovative learning alternative that is relevant to the Merdeka Curriculum and the needs of elementary school students.

The community service program conducted by students during the Field Work Practice (PKL) at TPQ Nurul Huda, Riam Mengelai Village, is implemented as a tangible contribution to student guidance, focusing on enhancing religious competence, discipline, and worship skills. This program was motivated by the need to improve the quality of religious education systematically and according to the skill level of each student, making learning more effective and targeted. The objective of this service is to optimize student guidance by improving Quran reading skills, daily prayer memorization, moral development, and active participation in religious activities according to each class’s ability. The implementation method includes initial observation, planning a guidance program based on skill levels, direct teaching and learning, individual and group mentoring, and periodic evaluation. Students are divided into four classes according to their ability: Class 1 for students at IQRA’ levels 1 and 2, Class 2 for IQRA’ 3 and 4, Class 3 for IQRA’ 5 and 6, and Class 4 for students who can read the Quran fluently. Each class receives materials tailored to their level, ranging from introduction to Arabic letters, Quran reading, daily prayer memorization, to moral development and worship practices. This class-based guidance approach allows PKL students to provide focused attention, ensuring optimal learning outcomes. The results show significant improvements in students’ discipline, learning motivation, Quran reading skills, prayer memorization, and moral understanding. Class-based guidance according to skill levels provides each child with an appropriate learning experience, enabling maximal development. PKL students gain practical experience in early childhood religious education, lesson development, and classroom management. This program is expected to serve as a systematic, effective, and sustainable model for student guidance at TPQ Nurul Huda.

The Public Speaking and Computer Network Cabling Training Activity at SMP YPK Sele Be Solu aims to improve students' competence in communication and technical skills in computer networking. The activity was carried out using an experiential learning approach with stages of observation, socialisation, hands-on training, and evaluation. The results of the activities show an increase in students' confidence in public speaking and basic technical skills in network cabling, including LAN cable installation, RJ-45 connectors, and cable testing. Intensive mentoring during the training helped students overcome difficulties and optimise their understanding. This activity demonstrates that combining soft skills and hard skills training through direct experience can improve students' overall competence, motivate learning, and prepare students to face academic and digital challenges in the future. In addition, this activity also strengthened cooperation between schools and universities in supporting the improvement of skills-based education quality. The enthusiasm of students during the training showed that practice-based learning methods are very effective at the junior high school level. With this activity, students have a strong foundation to develop their interests and potential in the fields of communication, information technology, and readiness to face the rapidly developing digital world.

A student's learning success is largely determined by their academic evaluation. Estimating a student's final grade can assist educational institutions in conducting initial assessments of academic achievement. This study aims to analyze the performance of the Multiple Linear Regression (MLR) and Random Forest (RF) algorithms in predicting students' final grades using Google Colab. This research method uses a quantitative approach using secondary data that includes age, mid-term exam scores, final exam scores, and categorical variables as independent variables, with the final grade as the dependent variable. The research process is carried out through data preprocessing steps, dividing training and test data, model training, and performance evaluation using Mean Squared Error (MSE), Mean Absolute Error (MAE), and the coefficient of determination (R2). The results show that the Random Forest algorithm provides more accurate prediction accuracy compared to the Multiple Linear Regression algorithm, especially in identifying nonlinear relationships between variables. Therefore, the Random Forest algorithm is more recommended for predicting students' final grades with complex data characteristics.

The ability to read the Qur’an is a fundamental competence in Islamic education. However, many children still face difficulties in reading the Qur’an accurately and fluently in accordance with tajwid rules. This community service program (Pengabdian kepada Masyarakat/PKM) aimed to improve Qur’anic reading skills of students at Asy-Syakirin Qur’anic Learning Center (TPQ) in Nibung Village, Kapuas Hulu Regency, West Kalimantan. The program employed a Participatory Action Research (PAR) approach, actively involving teachers and students in all stages of the activities. The implementation consisted of planning, action, observation, and reflection stages. During the planning phase, students’ initial reading abilities were identified and grouped into basic (iqra’) and advanced (tahsin) levels, appropriate learning methods were selected, and supporting learning media were prepared. The action phase involved individual and small-group mentoring, guided Qur’an reading with direct correction of pronunciation (makharij al-huruf) and tajwid, application of memorization and dictation (imla’) techniques, and varied teaching approaches through instructor rotation. Evaluation was conducted through pre-tests and post-tests, direct observation of students’ reading performance, and assessment of participation and attendance. The results indicate a significant improvement in students’ Qur’anic reading skills, particularly in fluency, accuracy of pronunciation, and basic understanding of tajwid. This program is expected to serve as a sustainable model for improving Qur’anic literacy in Qur’anic learning institutions.

The purpose of this study is to develop a mathematics e-module based on the tourism potential of Pasuruan City material of flat-sided solid shapes. This research is motivated by the use of teaching materials by teachers is still manual, not in digital form that integrates local tourism potential. The type of research is R&D (Research and Development) with the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The results of the study show that the mathematics e-module based on the tourism potential of Pasuruan City material of flat-sided solid shapes has gone through a model development process. The validation results show that the percentage of experts with an average of 93.6% is in the very valid category. The application of the mathematics e-module received a positive response with a percentage of 88.5% on a small scale and on a large scale showing 89.2% in the very practical category. The posttest showed a percentage on a small scale of 83%, while on a large scale it reached 80% which is categorized as effective. Conclusion, the development of a mathematics e-module based on the tourism potential of Pasuruan City material of flat-sided solid shapes is declared valid, practical and effective.

This study aims to develop Student Worksheets (LKPD) incorporating the traditional serok kuali game on multiplication material for third-grade students at SDN Deket Wetan Lamongan and to determine their validity, effectiveness, and practicality. The research method employed was Research and Development (R&D) using the ADDIE model, which consists of the analysis, design, development, implementation, and evaluation stages. The research subjects included two expert validators, namely a media expert and a subject-matter expert, as well as 15 third-grade students at SDN Deket Wetan Lamongan. Data were collected using expert validation questionnaires, conceptual understanding tests (pretest and posttest), and student response questionnaires. The results showed that the developed LKPD demonstrated a very high level of validity, with a score of 97.5% from the media expert and 95.55% from the subject-matter expert. The effectiveness test indicated an improvement in students’ learning outcomes, with an N-Gain score of 0.803 (80.3%), which falls into the effective category. In addition, students’ responses to the use of the LKPD reached a percentage of 95.6%, categorized as very good. Based on these findings, it can be concluded that the LKPD incorporating the traditional serok kuali game is feasible, effective, and practical for use as instructional material to enhance third-grade elementary school students’ understanding of multiplication concepts.

The interactive learning video innovation "Human Blood Circulation" through Edpuzzle, with embedded questions, is designed to address the difficulties faced by fifth-grade elementary school students in understanding abstract biological concepts. Science education in elementary schools often encounters challenges in explaining invisible processes, such as the heart's working mechanism and blood circulation, leading students to struggle with comprehension or merely memorize the material. Conventional learning videos tend to make students passive, necessitating media that can transform the learning process into an active one. Edpuzzle, as an educational platform, allows teachers to insert questions at critical points in the video, requiring students to answer before continuing to watch. This innovation aligns with the cognitive development stage of fifth-grade students, who are in the concrete operational stage.The research objectives include product development, validity and feasibility testing, analysis of conceptual understanding improvement, influence on focus and learning independence, and student responses. Media development refers to Mayer's cognitive theory of multimedia and the characteristics of interactive videos according to Heinich et al. Additionally, media development models such as ADDIE and Dick and Carey are discussed. The main benefits of using Edpuzzle include increasing engagement, facilitating real-time formative assessment, and enhancing learning motivation. However, challenges exist such as technology access, teacher readiness, the risk of technology dependency, and long-term evaluation. The practical implications can support digital learning and the transformation of elementary science education.

This training aims to equip students of to enhance the graphic design skills of students at SMK XI DKV Pangeran Antasari through Adobe Photoshop training. This activity is conducted in response to the growing need for graphic design proficiency among students in the digital age. This service adopts a practical qualitative research method with a direct approach, enabling participants to immediately apply the acquired knowledge. The methods employed include interactive workshops, practical demonstrations, and skills evaluation. The results of the activity demonstrate a significant improvement in students' abilities, with 85% of participants capable of producing simple designs independently. It is therefore expected that upon completion of this training, participants will be able to enhance their creativity in learning, particularly in the field of graphic design, as a primary foundation for becoming professional designers in the workforce."

Evaluation of Islamic Religious Education (PAI) learning plays a strategic role in assessing the achievement of educational goals while supporting the character development of students. The evaluation process not only considers cognitive aspects but also includes affective and psychomotor aspects, such as the appreciation of religious values, noble morals, and the ability to perform religious services. This study aims to describe the relationship between the scope of PAI evaluation and the process of character development of students. The method used is a descriptive qualitative approach, with the research location at SDN Ngebel, Kasihan, Bantul. The research subjects included PAI teachers, students in grades I, V, and VI, and several parents. Data were collected through interviews with teachers, students, and guardians, observations of learning activities and religious practices, and documentation, including records of grades and religious activity agendas. Using the Miles and Huberman interactive model, data analysis included the stages of presentation, reduction, and drawing conclusions. Triangulation methods and sources ensured the validity of the data. The results showed that the implementation of a comprehensive PAI evaluation, which included academic assessment, religious practices, and moral behavior, had a significant impact on the development of student character. This is especially true in terms of religiosity, discipline, and responsibility. Therefore, the broader and more integrated the scope of Islamic Religious Education (PAI) evaluation, the greater its contribution to the overall character formation of students.