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Real analysis is one of the main branches of mathematics that serves as a fundamental foundation for the development of science and technology. This study emphasizes the understanding of basic concepts such as real numbers, limits, continuity, the principle of mathematical induction, as well as deductive and axiomatic approaches as a strong framework for mathematical proofs. This research employs the Systematic Literature Review (SLR) method by examining articles and journals related to both the theoretical aspects and the implementation of real analysis in solving mathematical problems. The findings indicate that the application of Polya’s method, visualization through demonstration, and the use of modern technology such as augmented reality (AR) can enhance the effectiveness of real analysis learning. These approaches help students connect abstract concepts with real applications, thereby strengthening logical, systematic, critical, and rigorous thinking skills. However, several learning difficulties are also identified, including the complexity of the material, weak learning habits, social influences, and inappropriate teaching strategies. Therefore, more applicative, interactive, and contextual learning strategies are needed to support the achievement of learning objectives. The conclusion of this review highlights that the integration of theoretical understanding, problem-solving methods, and innovative technology is a strategic step to improve students’ thinking quality in real analysis courses. Thus, real analysis is not only positioned as a theoretical subject but also as a medium for developing problem-solving abilities and higher-order thinking skills that are relevant to both academic needs and real-world applications.

Community Service Learning (CSL) is a tangible manifestation of the implementation of the Tri Dharma of Higher Education, which aims to apply knowledge within the community, particularly in addressing economic challenges in rural areas. This study focuses on the effectiveness of the UIN SU student KKN programme in Sugihen Village, Juhar Subdistrict, Karo Regency, which carries the theme of economic empowerment of the community. The research method used a qualitative approach with participatory observation and practical demonstration techniques, directly involving the Sugihen Village community. The results showed that this programme significantly improved the participants’ knowledge and technical skills, transforming their roles from passive consumers to active producers. This training not only helped reduce household expenses but also opened up new business opportunities that had the potential to increase family income. Therefore, this KKN programme can serve as an effective strategic model for creating stable and independent community-based economic growth.

The urgency of improving product marketing effectiveness in Musuk Village, Boyolali, arises because the Ceria Women Farmers Group (KWT Ceria) has been relying on face-to-face sales with limited reach and minimal visual appeal to attract potential buyers. The goal of this training is to enhance the knowledge and skills of KWT Ceria members in product photography and the use of e-commerce platforms to expand market access. The methods applied in this training include interactive lectures on the basic principles of product photography and digital marketing strategies, demonstrations of e-commerce applications, as well as hands-on practice in product photography and uploading photos to online platforms. The post-training evaluation results show a significant increase in participants' knowledge, enhanced technical skills in product photography, and deliverables such as a digital product catalog and e-commerce accounts. The findings demonstrate that product photography and digital marketing training can strengthen the competitive edge of KWT Ceria in the digital era. This training not only provided technical skills but also improved the members' ability to utilize technology to market products more widely and efficiently.

The educational outreach program for the handling of corpses (tajhizul mayit) conducted by Group 29 of the STAIN Madina Community Service Program in Hutabaringin Julu Village aimed to provide theoretical and practical understanding to the community regarding the procedures for handling corpses in accordance with Islamic law. Participants included mothers, fathers, and young men and women, who were expected to disseminate this knowledge to the wider community. This study used a qualitative descriptive approach with a participatory method, allowing participants to be directly involved in the learning process. The implementation of the activity included several methods, such as lectures given by expert speakers, live demonstrations on corpse handling procedures, corpse handling simulations, and discussions that actively involved participants. This activity was designed so that participants not only understood the theory but also had practical skills in handling corpses in accordance with Islamic teachings. The results of this activity showed a significant increase in participants' understanding and skills in handling corpses. In addition to increasing religious literacy, this activity also fostered collective awareness regarding the importance of fardhu kifayah obligations, which are a shared responsibility of the community. It is hoped that through this activity, the community will be better educated and better prepared to carry out religious duties properly.

Counseling on Clean and Healthy Living Behavior (PHBS) in schools is an important step in instilling the habit of maintaining personal hygiene from an early age. This Real Work Lecture program is carried out with the aim of increasing students' understanding and awareness of the importance of PHBS, especially through the habit of washing hands with soap and brushing their teeth in the right way. The activity took place at the Sait Buttu Saribu Village Development Private Junior High School, Pamatang Sidamanik District, Simalungun Regency, using counseling, demonstration, and direct practice methods. This program involved six students, two acted as presenters and four others as companions, as well as all grade IX students as participants. In addition to providing materials and practices, this activity also encourages active participation of students through question and answer sessions and discussions on the importance of maintaining personal health and the surrounding environment. With direct involvement, students not only understand theory, but are also able to apply clean and healthy behaviors in daily life. The results of the activity showed that students were able to re-practice the material given, including the stages of washing hands and brushing their teeth correctly. It is hoped that through this activity, students can implement PHBS in a sustainable manner at school and at home, as well as become an example in encouraging a healthy living culture in the surrounding environment. This program is also expected to make a positive contribution to improving the quality of public health in general through healthy living habits from school age.

Hypertension is a condition in which systolic blood pressure exceeds 140 mmHg and diastolic pressure exceeds 90 mmHg persistently. Uncontrolled high blood pressure can cause disorders in the circulatory system and vital organs such as the heart and brain. One non-pharmacological effort to lower blood pressure in hypertensive patients is through deep breathing relaxation exercises, performed twice a day for ten minutes. RSU Siaga Medika Purbalingga, located in Padamara District, has recorded the highest number of hypertension cases in the area, totaling 4,470 patients. Based on a preliminary survey, many hypertensive patients were unaware of the benefits of deep breathing relaxation therapy; therefore, a Community Service (PkM) activity was conducted in the hospital’s Internal Medicine Clinic. The method involved educational sessions using lectures and demonstrations, supported by leaflets and videos. Participants’ knowledge was evaluated using pretest and posttest questionnaires. The results showed that most respondents were female (60%) and aged between 46–55 years (40%). Knowledge levels significantly improved, from the “low” category (40%) before education to the “good” category (90%) after education. Thus, deep breathing relaxation therapy has the potential to be an effective alternative method to help reduce blood pressure in patients with hypertension.

Clean and Healthy Living Behavior (CHLB) is an essential practice to improve students’ health knowledge, attitudes, and daily habits. This community service program (Kuliah Kerja Nyata/KKN) was carried out at Senior High School 8 Dumai with the aim of educating students on CHLB principles. The activity involved 47 students aged 15–17 years, using interactive methods such as presentations, educational media, discussions, and practical demonstrations. The results indicated a significant increase in students’ understanding of personal hygiene, proper handwashing with soap, maintaining a clean school environment, and adopting healthier lifestyle practices. Active participation during discussions and practice sessions showed strong engagement and relevance of CHLB education to students’ daily lives. This program demonstrated that CHLB education through KKN is effective in promoting awareness and instilling sustainable healthy behavior among high school students.

Appropriate technology innovation (TTG) in agriculture is an important solution in improving farmers' work efficiency, especially in the fertilization process. In Pamotan Village, where the majority of the population are tobacco farmers, the fertilization method is still done manually by sowing on the soil surface. This method often causes uneven distribution of fertilizer, wastage of energy and time, and a lot of fertilizer lost by water or wind. This community service activity aims to introduce a manual fertilizer sowing tool made from PVC as a simple, cheap, and easy-to-use solution for farmers. The implementation method includes counseling, tool demonstration, and direct training to farmer groups as activity partners. Evaluation was conducted through observation and questionnaires before and after the activity. The results showed an increase in farmers' understanding of efficient fertilization, as well as a positive response to the tools that were considered practical and economical. The use of this seedling tool can save up to 30% fertilizer and speed up the fertilization process by 40%. Thus, this manual fertilizer seedling tool is effective in helping farmers improve work efficiency and productivity, and is very suitable for small-scale farmers in rural areas.

Scouting extracurricular activities play a strategic role in shaping the character of elementary school students, particularly in instilling the values of discipline, solidarity, and cooperation, which are essential for children's personal and social development. This community service project aims to describe the process of mentoring the Marching Regulations (PBB) at SDIT Al-Qonita while identifying the impacts it has on strengthening students' character. The methods used in mentoring include lectures to convey basic concepts, demonstrations as examples of correct movements, repeated practice to train technical skills, joint reflection to evaluate experiences, and a comprehensive evaluation of the results of the activities. The mentoring process was carried out in three meetings over three weeks, with stages starting from an introduction to basic marching material, intensive group practice, and implementation of evaluations that emphasize technical and non-technical aspects. The results of the activity showed that students experienced an increase in technical skills in marching, such as movement accuracy and neatness of formation. Furthermore, this activity was proven to be able to strengthen discipline, solidarity, a sense of responsibility, and the ability to work together among students. Furthermore, the inclusion of educational games and icebreakers during training sessions has proven effective in maintaining motivation, reducing boredom, and creating a pleasant learning environment. Thus, the extracurricular Scouting activities, supported by the National Scout Movement (PBB), serve not only as a means of training marching skills but also as a means of ongoing character development. The results of this community service demonstrate that the PBB can be used as a relevant educational instrument to strengthen the character of elementary school students while simultaneously supporting the achievement of national education goals.

This community service program was implemented to overcome the limited technical capacity of teachers and students at SMK Negeri Jambu in mastering the installation and programming of battery-based electric vehicles, which is a crucial skill in preparing competent human resources for the rapidly evolving green vehicle industry. The program specifically aimed to enhance participants’ knowledge and skills in several key areas, including the installation of electric motor control systems, management of battery energy, and maintenance of essential electric vehicle components. To achieve these goals, the activities were carried out using a blended method that integrated lectures, demonstrations, and direct hands-on practice, supported by continuous mentoring and systematic evaluation. In addition, QR Code–based learning resources were incorporated to provide participants with quick and efficient access to digital instructional materials, allowing for more flexible and independent learning. The evaluation results revealed significant progress in both the theoretical understanding and practical abilities of the participants. They were able to demonstrate improvements not only in operating and maintaining electric vehicle systems but also in identifying problems and performing troubleshooting independently. These findings suggest that the program effectively contributed to building sustainable competencies for teachers and students, equipping them with relevant skills aligned with the needs of the green automotive industry, while also promoting technological adaptation and innovation in vocational education.

This study was motivated by the low ability of seventh grade students at SMP Dharma Karya UT to present descriptive texts orally, which is indicated by their lack of fluency, unclear pronunciation and intonation, and low self-confidence. This condition is aggravated by monotonous learning models that make students feel bored. One alternative to overcome this problem is the application of the Teaching at The Right Level (TaRL) learning model. This model focuses on the students’ actual ability levels so that the content and learning activities can be adjusted to their readiness to learn. This research used a quantitative method with a Randomized Demonstration Group Posttest Only Design and involved two groups: an experimental class and a control class. The sample consisted of 53 seventh grade students of SMP Dharma Karya UT. The research instrument was a test of oral descriptive text presentation skills. The results show a significant effect of applying the TaRL model on students’ ability to present descriptive texts orally. The experimental class receiving TaRL obtained an average posttest score of 47.8 out of 80, while the control class only scored 34.29 out of 80. The t-test showed tcount (2.45) > ttable (1.66) at a 5% significance level, so H0 was rejected and H1 was accepted. It can therefore be concluded that the application of the TaRL model is more effective than conventional teaching in improving students’ oral presentation skills of descriptive texts.

The freedom of expression in public is a human right guaranteed in Indonesia's legal system through Law No. 9 of 1998. The handling of public demonstrations by the Indonesian National Police, particularly the Samapta unit, plays a strategic role in maintaining order and security during protests. This study aims to analyze the role of the Samapta unit in managing public demonstrations, identify the challenges faced, and examine the implementation of human rights principles in crowd control. Using a normative legal method with a juridical normative approach, this study analyzes secondary data in the form of regulations, legal literature, and official documents, as well as primary data from Law No. 9 of 1998, Law No. 2 of 2002 concerning the Indonesian National Police, and related regulations. The results show that the role of the Samapta unit in managing public demonstrations includes three main aspects: preventive, repressive, and educational. The preventive role is carried out through coordination and security preparations as stipulated in Article 10 of Law No. 9 of 1998, the repressive role involves the dispersal of protests under certain conditions as per Article 15, and the educational role is implemented through socialization and community guidance. However, the implementation of human rights in protest security still faces challenges in aspects such as proportionality of force, non-discrimination, accountability, and public participation. The study concludes that, although it has a strong legal foundation, improvements in regulations, human resources capacity, and supervision systems are needed in handling public demonstrations.

The community service activity conducted in Toapaya Selatan aimed to introduce an innovative planting and fertilizer applicator tool based on PVC pipes as an appropriate technology. This program was motivated by the persistence of manual farming practices that require excessive labor, time, and costs, while often resulting in uneven fertilizer distribution that reduces crop productivity. The implementation method adopted a participatory approach, consisting of preparation, counseling, demonstrations, field practice, and evaluation involving local farmers. Training sessions included hands-on practice to ensure that participants not only understood the theoretical aspects but also acquired practical skills in using and assembling the tool. The results indicate that the application of the pipe-based tool improved labor efficiency, reduced fertilization time, and enhanced the uniformity of fertilizer distribution on plantation land. These improvements were directly reflected in better crop maintenance and more sustainable use of resources. Farmers’ high enthusiasm and active participation demonstrated the success of this simple yet impactful technology transfer. Nevertheless, several challenges were encountered, including limited technical understanding among some participants, difficulties in replicating the tool independently, and restricted availability of tool-making materials in the local market. Overall, this innovation has the potential to contribute significantly to increasing local agricultural productivity. Further training, continuous mentoring, and institutional as well as financial support from the village government are strongly recommended to ensure the sustainability, scalability, and long-term adoption of this appropriate technology.

The development of digital technology and the impact of the pandemic have shifted the learning paradigm in elementary schools from traditional face-to-face models to technology-based online systems. However, the limited mastery of teachers in utilizing digital learning media, particularly Google Classroom, has become a major obstacle in implementing effective online learning. This community service activity aims to improve the competence of teachers at SD Negeri Gollu Sapi in managing technology-based learning through the use of Google Classroom. The implementation method consists of four stages: preparation, workshop implementation, practice mentoring, and evaluation. The workshop was designed interactively by combining material presentation, demonstration, discussion, and hands-on practice, covering the creation of virtual classes, uploading teaching materials, assigning tasks, and conducting online assessments. The results of the activity showed a significant improvement in teachers’ skills, both in independently managing online classes and in applying the main functions of Google Classroom. Teachers were able to create digital teaching materials, set assignment schedules, provide feedback, and prepare technology-based assessments. In addition, this activity also produced an online article publication and video documentation as additional outputs. The teachers’ enthusiasm during the implementation indicates that this activity is useful and relevant to the needs of 21st-century learning. With this training, teachers are expected to become more adaptive to the digital transformation in education, thereby supporting the achievement of a more interactive, effective, and sustainable learning process in the digital era.

The rapid development of digital technology has brought significant benefits to the field of education, particularly through the use of academic email as an official medium of communication. However, this also creates potential security risks, especially phishing attacks based on social engineering. The low level of digital security literacy among students makes academic email accounts vulnerable to cybercrime. This study aims to implement an awareness program on academic email security, focusing on improving students’ understanding of phishing threats at SMA Islam Terpadu Rantau Prapat. The method used was an interactive workshop approach, which included theoretical sessions, demonstrations of phishing cases, simulations on identifying fake emails, and group discussions. Evaluation was carried out through pre-tests and post-tests to measure the participants’ ability to detect phishing. The results showed a significant improvement in students’ knowledge and skills, with the percentage of participants able to identify phishing increasing from 20% before the program to 82% after the program. These findings demonstrate that practice-based education is effective in building students’ digital literacy. The limitation of this study lies in the relatively small sample size and short-term evaluation. Future research is expected to expand the number of participants and integrate interactive technologies to ensure more sustainable impacts.

This study aims to analyze the socialization process of implementing a mobile application for English language learning among Information Systems students and to evaluate the effectiveness of the socialization. The research employs a descriptive qualitative method, collecting data through observation, interviews, questionnaires, and documentation. The subjects consist of 30 students purposively selected based on their interest and readiness to participate in the socialization. The socialization process includes material delivery, application demonstration, and brief training. Results show an increase in students’ positive perceptions regarding the ease of use and benefits of the application in supporting English learning. Additionally, students’ learning interest significantly improved after the socialization. The effectiveness evaluation reveals that the delivered material is easy to understand, and the interactive methods successfully engage student enthusiasm. The usage of the mobile application among students notably increased, both in terms of downloads and routine usage frequency. However, some challenges remain related to motivation for consistent application use, which should be addressed in future development and socialization efforts. This study recommends enhancing technical support and motivation strategies to encourage sustainable adoption. Thus, implementing mobile applications in English learning can be an effective alternative to improve learning quality in the digital era.

Preterm birth remains a global health concern, with 1 in 10 babies worldwide born prematurely. In Indonesia, the preterm birth rate is 29.5%, with 19% in Central Java and as high as 30% in Kendal Regency. Preterm infants require specialized care, making maternal readiness a crucial factor in ensuring optimal home care. This study aimed to analyze the effect of educational interventions using a booklet on mothers’ knowledge and skills in caring for preterm infants. A quantitative quasi-experimental design with a pre- and post-test control group was employed. A total of 20 respondents were selected using purposive sampling. Bivariate analyses were conducted using the McNemar test for paired data and the chi-square test for unpaired data. The results showed a significant improvement in mothers’ knowledge after receiving education with the booklet (p < 0.05), whereas the lecture and leaflet methods showed no significant difference (p > 0.05). However, there was no significant improvement in caregiving skills in either the booklet group or the lecture and leaflet group (p > 0.05). In conclusion, booklet-based education effectively enhances maternal knowledge regarding preterm infant care but does not significantly improve caregiving skills. This highlights the need for practice-based interventions, such as hands-on training and demonstrations, to strengthen maternal competence in managing preterm infant care at home.

Stunting is a chronic nutritional problem that impacts the physical growth and cognitive development of children, one of the causes is inappropriate parenting patterns such as exclusive breastfeeding, diet, and lack of nutritional fulfillment so that children are at risk of malnutrition. In Jember Regency itself, the high rate of stunting is a serious challenge for the government and the community that needs to be addressed. The selection of Gunungmalang Village as the location of community service is based on the high rate of stunting and early marriage as one of the causes of stunting. This community service activity began with training for Family Support Team (TPK) and Posyandu cadres, outreach to pregnant women, parents of infants/toddlers regarding the prevention and treatment of stunting, and a cooking demonstration of vegetable nuggets as an output of the activity by utilizing food ingredients that are easily available in the Gunungmalang community as an initial step to fulfill the nutrition of toddlers. This study uses a descriptive qualitative approach as a method from a case study of scientific paper research that describes factually and in detail related to the activities of the CINTA (Prevent Stunting and Increase Nutrition) work program. The objective of this scientific study is to implement a community service program through collaborative Community Service Programs (KKN) to prevent and address stunting in Gunungmalang Village. Data collection techniques used triangulation (observation, interviews, and documentation). This study demonstrates that the implementation of the community service program has a positive impact on increasing community awareness and changing behavior regarding stunting

Handwashing with Soap (CTPS) is one of the key indicators of Clean and Healthy Living Behavior (PHBS) proven effective in preventing infectious diseases, especially among school-aged children. However, the practice of CTPS in Aceh Province remains low, only 30.8%, thus requiring educational interventions in elementary schools. This community service aimed to improve the knowledge, attitudes, and skills of students at MIS Pasi Jambu, Aceh Barat District, in practicing CTPS through strengthening the role of the School Health Program (UKS). The method used was a participatory approach with strategies including interactive lectures, discussions, demonstrations, and direct practice. The results showed a significant increase in students’ knowledge and skills in performing CTPS according to WHO standards. In addition, behavioral changes emerged, with students developing the habit of washing hands before meals and after activities, while UKS teachers were strengthened as facilitators of healthy behavior in schools. This activity successfully fostered collective awareness and the initial stage of social transformation towards a clean and healthy lifestyle in the school environment.

The UNS Community Service Program (KKN) Batch 68 was conducted from July to August 2025 in Jaten Village, Karanganyar Regency, Central Java. This program focused on educating the community about the utilization of organic waste, particularly dragon fruit (Hylocereus spp.) peel, which is generally underutilized. Dragon fruit peel has the potential to be developed into functional food products as it contains fiber, vitamins, and pectin. Through the “Dragon Fruit Peel Waste Management into Sauce” workshop, participants were provided with knowledge and skills to process organic waste into value-added products while supporting household food security. The implementation methods included counseling, demonstrations, and hands-on practice. The results showed an increase in community understanding of food waste management, improved skills in processing dragon fruit peel into sauce, and the establishment of communication networks among village cadres for program sustainability. This innovation also holds potential to be developed into micro-enterprises in the healthy food sector.