Publication Search

Problem solving in permutation and combination requires the ability to understand context, choose strategies, and perform calculation procedures accurately. Based on the analysis of students' answers, it was found that difficulties arose consistently at each stage of problem solving according to Polya, namely the problem understanding stage, the planning stage, the plan implementation stage, and the rechecking stage. In general, students' weaknesses are not only related to their understanding of permutation and combination concepts, but also to their inability to apply problem-solving steps systematically. The results of the study indicate the need for a learning approach that not only focuses on mastering formulas, but also strengthens problem literacy, the ability to identify relevant information, and the selection of solution strategies appropriate to the characteristics of the problem. In addition, the habit of reflection through reviewing the process and results of the solution needs to be developed consistently so that students are able to recognize mistakes and improve their accuracy in solving permutation and combination word problems in a more accurate, logical, and structured manner.

This study aims to analyze the errors made by eleventh-grade students of SMA Swasta Eria in solving word problems related to quadratic equations and quadratic function graphs using Newman’s error taxonomy. The research employed a descriptive qualitative method involving 25 students who were given essay-type tests to measure both conceptual understanding and problem-solving skills. Data were collected from students’ written answers and analyzed according to Newman’s stages, which include reading, comprehension, transformation, process skills, and encoding. The findings reveal that errors occurred across all stages, with transformation errors and encoding errors being the most dominant. These mistakes generally stemmed from students’ inability to extract key information into correct mathematical models, inaccuracies in arithmetic operations, and insufficient understanding of fundamental quadratic concepts and their graphical representations. The results highlight the importance of instructional approaches that emphasize conceptual understanding, varied practice problems, and proper mathematical notation. Regular application of Newman’s error analysis is expected to help teachers provide more targeted feedback and improve students’ problem-solving abilities.

Subcontractor selection is a crucial factor in determining the success of a construction project. The selected subcontractor not only plays a role in expediting the completion of the work but also influences the overall quality, cost, and timeliness of the project. Mistakes in decision-making, such as selecting a less competent subcontractor, can result in delays in completion, increased project costs, and even decreased construction quality. Therefore, a systematic, measurable, and objective method is needed to support the subcontractor selection process. This study aims to implement the Analytical Hierarchy Process (AHP) method as an approach in a decision support system for subcontractor selection. AHP was chosen because it can decompose complex problems into simpler structures by determining criteria weights and comparing alternatives. The criteria used in this study include expertise, work experience, timeliness of work, equipment availability, and bid price. By assigning weights to each criterion, the selection process can be carried out more transparently and measurably. The case study was conducted at PT. Tatha Group, a company engaged in the construction services sector. In this study, AHP was used to prioritize alternative subcontractors to be selected to assist in project implementation. The research results show that the AHP method produces clear, structured results and supports more accurate decision-making. Thus, the application of AHP not only minimizes subjectivity in assessments but also provides accountable recommendations for selecting the best subcontractor for the project's needs.

This study aims to analyze passengers' understanding of prohibited items at Terminal 2 of Juanda International Airport and evaluate the effectiveness of information delivery strategies implemented to support aviation safety and security. The research uses a descriptive qualitative method with data collection techniques such as observation, interviews, and documentation. The findings show that most passengers, particularly elderly individuals, still do not have a clear understanding of the difference between items allowed in the cabin and those that must be placed in checked baggage. Information regarding prohibited items is only discovered when passengers reach the security check area (PSCP), which is considered too late, causing panic and discomfort among passengers. The main factor contributing to the low level of understanding is the unstrategic delivery of information and the lack of engaging communication media. Although information about prohibited items is available through posters and announcements, these methods do not effectively attract passengers' attention. Passengers often overlook the information placed in less visible or strategic locations. This indicates that the current information media have not been effective in providing significant impact on passengers' understanding. This study recommends several steps to improve passenger understanding. The placement of more effective information media, such as eye-catching educational banners and 3D video displays at the departure entrance area, is expected to attract more attention from passengers. Additionally, the use of digital platforms, such as airport apps or social media, could be an effective way to deliver information to passengers before they arrive at the airport. With these strategies, passengers can better prepare and avoid potential mistakes during security checks, thus supporting the smoothness and safety of their flights.

This study is dedicated to the design and implementation of a web-based inventory management platform for PT. Paramata Baraya International. replacing the manual Excel system that is ineffective and susceptible to mistakes. The Rapid Application Development (RAD) method is chosen for its quick and iterative approach to software development. The system is built using the Next.js framework and PostgreSQL as the database, with Prisma ORM for database management. Key features include item management, real-time status tracking, calibration, maintenance, equipment rental, and automatic notifications. The implementation results show a 60% increase in item search efficiency, 95% data accuracy, and an 80% reduction in manual input errors. This study is significant as a solution for companies engaged in calibration and maintenance of measuring instruments.

This research aims to examine the learning methods and challenges faced by several students when solving mathematics problems regarding number patterns, with an emphasis on analyzing students' thinking processes. This study employs an approach to analyze students' ways of thinking. In this study, a qualitative approach is used with a case study method on a group of junior high school students. Information was collected through observations and analysis of students' work. The findings of the research indicate that students apply various strategies in understanding the material of number patterns, which include memorizing patterns to trying to find their own formulas. However, many students face difficulties in drawing conclusions about patterns and connecting relevant mathematical concepts to everyday life. Common mistakes include errors in recognizing patterns, errors in calculations, and a lack of precision in understanding problems. Analysis of the thinking process shows that some students are still at the concrete operational thinking level, so they need visual aids and real-life examples to better understand patterns. This research emphasizes the need for an approach in teaching that can enhance students' abstract thinking abilities and requires varied practice in determining numerical pattern problems.    

Early childhood is a child aged between 0 and 6 years. The early years are a special time for every child; this period is known as the "golden age" because of the rapid development of children during this period. The goal of early childhood education is to provide learning activities that can develop children's talents and skills and educate them about discipline by disposing of waste according to its type, not in the designated trash can. Early discipline is very important for children's adjustment in everyday life because it can help develop a healthy character that allows children to make their own decisions about what is and is not allowed to do in everyday situations. The purpose of this study is to improve a disciplined environment that encourages healthy child development so that children can grow into responsible, compassionate individuals who can learn from their mistakes. From the results of the study obtained using a descriptive qualitative approach method, it can be concluded that the purpose of daily activities is to help children develop discipline. Teachers often ask students to come to school ten minutes before the bell rings, shake hands, remind them to complete assignments on time, dress appropriately for school, and throw trash in the designated place.

The training program in sports is the most important thing in achieving an achievement that is the main target of each team. This factor is none other than the existence of long-term coaching and various training programs. This factor is none other than the existence of long-term coaching and various training programs. A coach provides a variety or varied training program to be evaluated at the end of the training. The purpose of the evaluation itself is to correct mistakes from either the training program or the athlete. The research method of evaluating the CIPP program (context, input, process, product) using quantitative and qualitative descriptive methods. The results of the research on the Evaluation of the Coaching of the Futsal Club Mitra Fc U-20 Sumenep Regency, received a score of 3.35 which is categorized as very good. 3) Process The results of the research on the Evaluation of the Futsal Club Mitra Fc U-20 Sumenep Regency, received a score of 3.35 which is in the very good category. 4) Product The results of the research on the Evaluation of the Futsal Club Mitra Fc U-20 Sumenep Regency, received a score of 3.31 which is in the very good category. Based on the results of the research that has been carried out, there are the following conclusions: 1. Aspects of context, input, process, product. With good performance indicators, excellent efforts, and good results.  

This research aims to describe students' difficulties in solving equations and inequalities. This type of research is descriptive using a qualitative approach. Based on the discussion and research results, it can be concluded that the errors that students often make in this material are errors at the reading and transformation stages. In addition, students also often make mistakes at the process skill stage, namely errors in understanding the problem, understanding the concept, determining the correct formula, and performing the calculation process. The factors that cause students to make mistakes are that students are less precise in determining known and questionable information, less precise in compiling problem solving steps, less precise in using formulas, less precise in writing the steps of completion, less precise in performing correct calculations, not determining the conclusion of what is asked, and not re-examining the results of the answers that have been done.

This research aims to analyze students' learning difficulties  in solving mathematical problems, especially in mixed arithmetic operations at the elementary school level. The method used is Systematic Literature Review (SLR), which collects and analyzes relevant previous research. The research results show that most students have difficulty in understanding questions and doing arithmetic operations, especially in the arithmetic operations section (90% of students have difficulties). Common mistakes include errors in concepts, procedures, and operations, caused by lack of understanding, inaccuracy, and confusion in the order of processing questions. Internal factors such as attitude and motivation as well as external factors such as ineffective teaching methods also affect this difficulty. This research suggests solutions in the form of improving arithmetic exercises, improving the understanding of basic mathematical concepts, using relevant learning media, as well as guidance and remedial for students with difficulties. A creative learning approach is needed to overcome this challenge.

Speaking anxiety among students is a common phenomenon that affects their academic performance and personal development. This study aims to explore the reasons behind students' fear of speaking in various educational settings. Using a literature review method, this research examines previous studies related to psychological, social, and educational factors contributing to students’ reluctance to speak. The findings indicate that speaking anxiety is primarily caused by fear of making mistakes, low self-confidence, and negative social evaluations from peers or teachers. Additionally, classroom environment, teaching methods, and cultural influences also play a significant role in shaping students' willingness to speak. The impact of this fear extends beyond academic performance, affecting students' participation, self-expression, and future communication skills. Several strategies have been identified to reduce speaking anxiety, including fostering a supportive learning environment, encouraging positive reinforcement, and implementing interactive teaching methods. Educators are encouraged to create a more inclusive atmosphere that minimizes students' fear of judgment and enhances their confidence in speaking. This study contributes to the existing body of knowledge on students' speaking anxiety by summarizing key factors and offering practical implications for teachers, educators, and policymakers. Future research could further explore intervention programs that effectively address students' fear of speaking in different cultural and educational contexts.  

Determining the best hosting service provider is a very important first step in starting a digital business. Mistakes in choosing a hosting service will have fatal consequences for the continuity and smooth running of a digital business. This research aims to select the best hosting service in the form of a Decision Support System (SPK). Determining the best hosting service provider is very important because hosting is one aspect that determines the success of an e-business. This research uses the PROMETHEE (Preference Ranking Organization Method for Enrichment Evaluation) method to determine the ranking of the best hosting service providers. The performance assessment of hosting service providers was carried out from January to April 2024. This research was carried out using data from 9 alternatives and 5 criteria which are crucial aspects in hosting services, namely, loading time, server uptime, number of downtimes, support and user friendliness. In this research, it was found that the hosting service provider Niagahoster was the first ranked alternative with a net flow value of 0.75.

English language skills are very important for students to support academic tasks and to support their future careers. English language skills include listening, speaking, reading and writing skills. The purpose of this study was to determine the determining factors of English language skills of students in the Nutrition Science study program at the Persada Nabire Health Sciences College (STIKes). The type of research used is descriptive research with a qualitative approach. Data collection techniques used are interviews and documentation. The results of this study indicate that in general the determining factors of English language skills of students of the Nutrition Study Program of STIKes Persada Nabire include 4 factors, including: Listening Ability, in this case students have a low vocabulary, Speaking Ability, in this case what affects students' speaking ability is the students' anxiety about mistakes in speaking English and lack of mastery of English grammar, Reading Ability, factors that affect students are reading motivation and low vocabulary and lack of mastery of grammar, Writing Ability, factors that affect students are low interest and lack of support from the environment around students.

Mistakes in writing during learning have become common, especially for students who do not fully understand writing. Inspirational texts are texts that can inspire readers through the author's writing, whether through imagination or facts that occur in real life, containing inspiring content. The purpose of this analysis is to improve the writing structure of texts produced by ninth-grade students, who often write without paying attention to proper writing conventions. The research method used in this study is descriptive-analytical. The sampling method used is a single inspirational text created by a student as the research material. The results obtained from the research and analysis of these spelling errors include 12 categories, but there are still some identical words that were not included because they have already been categorized.

Social attitudes are activities in relationships with other people, whether with peers, teachers, parents, or siblings. In relationships with other people, very meaningful events occur in his life that shape his personality, which helps him develop into the human being he is. As an educator, cultivating social attitudes in students is very important so that students have the attitude to build relationships with other people in everyday life. Based on this phenomenon, the researcher took research at MTs Negeri 6 Blitar as the object of research with the aim of finding out how social studies teachers' strategies are in cultivating social attitudes in students. The formulation of the problem in this research is: (1) What is the social studies teacher's strategy in determining changes in student behavior and personality at MTs Negeri 6 Blitar? (2) What is the social studies teacher's strategy in cultivating students' social attitudes at MTs Negeri 6 Blitar? (3) What are the results of the social studies teacher's strategy in fostering students' social attitudes at MTs Negeri 6 Blitar? This research uses a descriptive-qualitative approach. The research location is at MTs Negeri 6 Blitar. The data sources in this research use primary and secondary data. Data collection techniques in this research used three techniques, namely, in-depth interviews, observation, and documentation. The data that has been collected is then analyzed through data collection, data reduction, data presentation, and drawing conclusions. The results of the research show that: (1) Implementing behavioral changes at MTs Negeri 6 Blitar starts from class VII students by getting used to: first making a greeting picket schedule after coming to school in the morning, holding the habit of doing dhuha prayers in congregation for all students and teachers, carrying out community service to clean the environment every Friday in mutual cooperation, familiarizing students with literacy, carrying out homeroom clinics to minimize mistakes made by students so that they can be minimized by each homeroom teacher, and teaching students good manners to respect parents, teachers, friends, and other people. Another thing is to get used to reading the Asmaul Husna before starting learning. (2) Developing students' social attitudes at MTs Negeri 6 Blitar by holding a program: they must collect social funds every Friday as sincerely as possible to help less fortunate friends. If they have damaged shoes, they can't afford them; the school buys the shoes using these social funds; treats friends. who are sick while at school; visits friends who are sick; works together to clean the classroom once a week so that students have the social spirit to care about dirty classrooms; picking up rubbish on the floor before starting learning can foster social attitudes by having a sense of caring about the surrounding environment. (3) The results of the teacher's strategy in cultivating students' social attitudes at MTs Negeri 6 Blitar make students more able to appreciate and respect other people, make students have a religious spirit by getting used to praying dhuha in congregation every morning and reading Asmaul Husna before starting social studies learning, make students more caring with the cleanliness of the surrounding environment because of cleaning activities on Fridays, make students love reading by holding literacy, make students more organized and minimize mistakes with the homeroom clinic, and foster a high social spirit with the existence of social funds every Friday and distributing These funds are properly used to buy necessities for underprivileged students, treat friends who are sick while at school, and visit friends who are sick.

Students who have difficulty learning mathematics will often make mistakes in learning to count and mistakes in solving word problems in mathematics. The difficulties experienced by students are difficulty in working on story problems due to the inability to understand the meaning of the questions and confusion when determining what arithmetic operations will be used to solve the story problems. The purpose of this research was to analyze the learning difficulties experienced by students as well as the factors that caused students’ learning difficulties in working on multiplication questions in the form of stories in class II elementary school. The method used in this research is descriptive case study. The subjects of this research are students and teachers of class II A at SDN 15 ULU GADUT. The data collection procedures used in the research are test’s, interviews, observation and documentation. The results of the research show that difficulties in learning mathematics include: 1) Difficulty in distinguishing multiplication problems from other material, 2) Student’s writing cannot be read, 3) Difficulty doing calculations in solving multiplication problems. Internal factors include: 1) Lack of enthusiasm for studying, 2) Low numeracy skills and difficulty understanding questions, 3) Not focusing on studying. External factors include: 1) Lack of attention from parents, 2) Often asking students to memorize multiplication, 3) Not using interesting learning media in teaching.

This research aims to analyze the difficulties of fourth grade students at SDN Mekarjaya 14 in solving mathematics story problems. This research uses qualitative research with an inductive method. This research aims to gain knowledge based on correct and reliable data and facts about students' mathematics learning difficulties in the form of story problems. The research instrument used was observation of test questions in the form of stories. The technique for checking the validity of the data is using triangulation. Based on the results of observations, there were still many respondents who made mistakes in working on the questions, including mistakes in changing story questions into mathematical sentences and using arithmetic operations. In general, students have difficulty working on story problems which are presented in the form of story problems. Apart from that, respondents also did not master multiplying results up to 100. In accordance with findings in the field, it can be concluded that there were difficulties experienced by respondents, including difficulties in understanding concepts and material,master and use arithmetic operations, for example multiplication and division. Meanwhile, the factors that caused respondents to experience difficulty learning mixed arithmetic operations included their lack of mastery of the concepts of multiplication and division, and the lack of time provided by respondents to repeat lessons at home.    

In the health sector, the government plans to reduce stunting rates by 40% in 2025. This goal has been stated in the Infant and Young Child Feeding (IYCA) program. In practice, mothers make mistakes in feeding their children influencing the nutritional status of the children resulting in an inability to fulfill the child’s nutrition needs. This condition occurred due to a lack of knowledge and information during the IYCF period. This study aims to provide knowledge to mothers about the importance of complementary feeding made from local food ingredients. This case study analyzed the growth development and nutritional status of an 11-month-old baby. Subjective examination showed that the mother felt that her baby's nutritional status was lacking so she came to the clinic to have her baby checked. Objective examinations of the baby's weight and height were performed. The mother received local food-based nutritional counseling. Midwives provided education about the importance of complementary feeding made from local food ingredients and provided support to mothers to continue breastfeeding their babies. The midwives also provided cooking recipes and nutritional content of food made from local food ingredients to the mother so she could independently practice it.

This research uses the Polya problem-solving procedure to describe students' difficulty in problem-solving in the material about systems of linear equations in two variables. The method in this research is descriptive research. The subjects in this research were three students in Class VIII of SMP Negeri 6 Tondano. The data analysis techniques used are data presentation, data reduction and conclusion. The results of this research show that of the four stages of Polya problem solving, students who have the highest scores can fulfil all stages of Polya problem solving, students who have medium scores can fulfil three stages of Polya problem solving, and students who have high scores can fulfil two stages of Polya problem-solving.

In education, choosing the right college major is crucial for students to achieve their academic and career potential. However, many students in Indonesia still choose majors that do not suit their interests and talents, which hurts their academic achievement and psychological well-being. This research aims to identify the impact of errors in choosing a major on students' academic achievement and psychological well-being. This research used quantitative methods with a cross-sectional design to collect data from 90 students who experienced a mismatch with their major. The data were analyzed using descriptive and inferential statistical analysis. The research showed that most respondents were dissatisfied with their academic results and often had difficulty understanding lecture material. Most respondents agreed that a mismatch between majors interests and talents can affect academic results, and they frequently feel stressed or depressed because of studying. In conclusion, mistakes in choosing a major can hurt students' academic achievement and psychological well-being. The government and educational institutions must develop more effective and relevant educational programs and provide academic counseling and guidance to help students overcome difficulties and improve their academic performance.