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The Problem-Solving Learning Model is one of the learning models that can develop problem-solving skills and student learning independence where this model is developed based on polya theory known as problem-solving steps, namely: identifying problem information/understanding problems, planning problem-solving strategies, using problem-solving strategies and re-examining solutions or solutions to problems that have been generated. The Use of the Problem-Solving Learning Model to Improve the Problem-Solving Ability of Pancabudi Private Vocational School Students for the 2023/2024 Academic Year. The purpose of this research is to determine the effectiveness of learning using the Problem-Solving learning model. This research is located at SMK Swasta Pancabudi where the class applies the Problem Solving learning model which will be compared with different classes using the classical learning model.

This research aims to analyze students' errors in solving mathematics problems on Systems of Linear Equations in Two Variables according to the Newman procedure. This research was conducted in class VIIIA of St. Catholic Middle School. Johanis Laikit. This type of research uses descriptive qualitative. The methods used in collecting data were written tests and interviews. The written test was given to class VIIIA students, totaling 18 students as subjects, the test questions consisted of 3 essay questions. Based on the test results, 5 students were selected based on different mistakes to be interviewed. The research results showed that from the 3 questions given, the majority of students made mistakes in answering SPLDV story questions using the Newman procedure as shown in the test results, namely errors in writing the final answer with a percentage of 74.07%, process skills errors with a percentage of 66.66%. , transformation errors with a percentage of 48.14%, understanding errors 35.18%, and reading errors 25.92%.

This study aims to determine the effect of the mindmap-assisted STEM approach on students' Higher Order Thinking Skills in learning biology class X SMA Negeri 4 Kerinci. This research is experimental research with a group pretest-posttest design model. The population in this study came from students of class X MIPA SMA Negeri 4 Kerinci in the academic year 2021/2022. The research sample was students of class X MIPA 2 and Class X MIPA 4. The sampling technique used was the random sampling technique. The data collection technique in this study was in the form of an objective test consisting of 20 HOTS questions that had been validated by experts. Data analysis is quantitative data analysis with tests using the SPSS 21 application. The results of the study can be concluded that the STEM approach has a significant effect on students' higher-order thinking skills in learning biology with the results of hypothesis testing 0.00 < 0.05. Furthermore, the STEM approach can increase students' HOTS in biology learning, the average score of the experimental class students is 85.76 and the control class is 70.31.

This research aims to analyze meta data related to real analysis lecture problems. This research uses the SLR (Systematic Literature Review) method. This systematic review identified 7 articles through the Google Scholar database published in 2019-2024. Data collection used the PRISMA procedure. The results of this research show that there are 3 research objectives related to the problems of real analysis lectures, namely: 1) to find out what factors influence students' learning difficulties during real analysis courses, 2) to find out students' reasoning abilities in real analysis courses, 3) to find out how much students know about the connection between real analysis and school mathematics.

This research aims to analyze meta data related to the use of the Mathway application by looking at research objectives that relate to the use of the Mathway application. This research uses the SLR (Systematic Literature Review) method. This systematic review identified 8 articles through the Google Scholar database published in 2018-2023. Data collection used the PRISMA procedure. The results of this research show that there are 3 research objectives related to the use of applications in mathematics learning, namely, 1) To find out how important the influence of technology is on mathematics learning for educators and students, 2) To find out how useful an application is in mathematics learning for educators and students, 2) To find out how useful an application is in mathematics learning for educators and students, and 3) To determine learning outcomes based on student interest and learning motivation.

Learning is a process of change for each individual, both in knowledge and attitudes. Every individual after learning will experience changes in their life. When studying at school, teachers only tend to teach students to memorize, read and calculate. Teachers have an important task in the learning process in class to improve students' learning abilities and understanding of the material provided. Based on observations made by the author, at SD N Pajang 3 teachers tend to be monotonous and use the same learning methods every day so that students quickly get bored and have difficulty understanding the material, especially in mathematics lessons. Based on the researcher's observations during the learning process in class 3, especially in mathematics, it was proven that many students did not understand so that based on test scores students got a score of 60. This research uses a qualitative approach which aims to determine the improvement in learning outcomes of class 3 students at SD N Pajang 3 before and after carrying out learning using concrete media. This research was conducted descriptively, namely by providing a pretest and posttest. Based on the results of this research, it was concluded that the use of concrete media had a positive impact and was effectively used in improving students' addition skills.

Community Service (PkM) Faculty of Teacher Training and Education (FKIP) HKBP Nomensen University Medan is a service program carried out by a team of students and DPL lecturers with the title "Utilization of Fiction Text Media and Mentimeter in Increasing Literacy in Literary and Numerical Language in High School Students Private Tri Sakti Lubuk Pakam”. The Community Service Program (PKM) of the Faculty of Education and Teacher Training is implemented by the university in an effort to increase knowledge in students to gain added value and as a means of increasing insight and experience which can trigger broader knowledge for students. This activity aims to improve student character by using fictional text media and time meter in learning Indonesian and Mathematics, especially for TRI SAKTI Lubuk Pakam Private High School students, to be able to apply and receive Indonesian and Mathematics tutoring well, and be able to demonstrate knowledge Using the Mentimeter application or characters on students after participating in PKM community service activities can help the community, especially students, in completing missed lessons.

The aim of this research is to provide a study of the computational thinking process of mathematics learning. This research uses library research methods. The data obtained is the publication of research articles in scientific journals. Data analysis includes three stages: organize, synthesize, and identify The result of previous research is students' computational thinking abilities need to be improved in abstraction and algorithms.      

This research aims to analyze the effect of using Web Wordwall in training students' computational thinking skills in mathematics learning with a qualitative approach. The research subject is the Director General of Teachers and Education Personnel, while the object is education that is liberating and pro-student. Data obtained from online and offline information sources is recorded in a structured manner, then analyzed to be synthesized into a systematic conceptual framework. Conclusions are drawn by taking the essence of the conceptual framework that can answer the research questions posed. The research method used is a case study with a focus on participatory observation, in-depth interviews and document analysis. Data was collected through literature study and analysis of learning materials. Data analysis was carried out using an inductive approach, by looking for patterns of findings and main concepts from the data collected.

This research aims to analyze the effect of using Web Wordwall in training students' computational thinking skills in mathematics learning with a qualitative approach. The research subject is the Director General of Teachers and Education Personnel, while the object is education that is liberating and pro-student. Data obtained from online and offline information sources is recorded in a structured manner, then analyzed to be synthesized into a systematic conceptual framework. Conclusions are drawn by taking the essence of the conceptual framework that can answer the research questions posed. The research method used is a case study with a focus on participatory observation, in-depth interviews and document analysis. Data was collected through literature study and analysis of learning materials. Data analysis was carried out using an inductive approach, by looking for patterns of findings and main concepts from the data collected.

This study aims to find out how students apply the four foundations of computational thinking in solving mathematics problems and whether students have applied computational thinking in solving mathematics problems. The research was conducted using an analytical approach to examine the results of solving mathematics problems. This approach involves collecting data from various sources, including tests, quizzes, or assignments given to research subjects. The collected data was then analyzed comprehensively to identify the use of four foundations of computational thinking in the process of solving mathematical problems. The results of this research are that students apply the four foundations of computational thinking. Decomposition by writing down what is known and looking for what is needed in the problem. Pattern recognition by understanding what is known and asking then using the right formula. Abstraction by writing formulas, ignoring what is not needed in the problem, and simplifying the answer. Algorithm by entering the required values into the formula then calculating them and solving the problem in the correct sequence of steps. Even though students make mistakes when solving mathematics problems, students can apply the four foundations of computational thinking.    

This service aims to explain the increase in mathematics learning outcomes in multiplication material by applying the fast mathematical multiplication method in class XII at MA Darussalam Manuju. Data collection techniques use observation, interviews and documentation techniques. The method used was classroom action research, the research subjects were teachers and 15 class XII students. Instruments include interview sheets, observation sheets and learning results test sheets. using the Kemmis and Mc Taggart research design model. The results show that the application of the fast mathematical multiplication method can improve students' mathematics learning outcomes and understanding of multiplication. This can be proven based on the percentage results of cycle I and cycle II. The percentage of 0% in the very good category in cycle I increased to 60% in cycle II.

This research aims to evaluate the effectiveness of the Missouri Mathematics Project (MMP) Learning Model in improving mathematics learning outcomes for junior high school students. This study employs a comparative approach, comparing mathematics learning outcomes between students taught using MMP and those taught using conventional teaching models. Data were collected through hypothesis testing of mathematics learning outcomes for both groups. The data analysis results indicate a significant difference in mathematics learning outcomes between the two groups, with a significance value (sig.) smaller than the commonly used significance level. These findings suggest that the implementation of MMP effectively improves mathematics learning outcomes for junior high school students. The practical implications of these findings are discussed in the context of developing more effective and inclusive mathematics teaching strategies.

This research aims to explain a review of the relationship between Self-efficacy and the ability to understand mathematical concepts, and how to develop and measure student Self-efficacy. In this research, the Systematic Literature research method was used which aims to obtain data from relevant research. With research sources coming from Google Scholar, Researchgate, Scopus, Syntax, and DOAJ. In this research, 17 reference sources were collected to obtain data and information. Information collected regarding differences in mathematical concept abilities in students' Self-Efficacy criteria, Development of Self-Efficacy in students in mathematics learning, Impact of students' Self-Efficacy on their ability to understand mathematical concepts, Measurement techniques (Indicators) of Self-Efficacy Efficacy of students' understanding of mathematical concepts. From the data collected, it was found that the technique that is often used is the Bandura technique. To develop self-efficacy in mathematics learning, you can focus on learning objectives, adding learning models, as well as 4 triggers, including: Mastery of experience, represented experience, social persuasion, and physical and affective conditions. In activating or applying these abilities, self-efficacy can have a positive impact on learning for students through external and internal learning activities of individual students. And self-efficacy is also useful in maintaining students' resilience in answering difficult questions, as well as understanding the concepts more deeply.

In learning activities, motivation is an encouragement or process to direct students in achieving learning goals. The research was motivated by the very diverse problem of students' learning motivation in mathematics subjects in class XI TFLM-3 SMK Negeri 5 Surabaya. This can be seen from the results of the researcher's observations, where when they are about to start learning activities, many students still think that mathematics is less interesting and boring so that students are always less ready to start learning mathematics and the learning that was usually carried out by previous mathematics teachers was just learning. just lectures and assignments. This research aims to determine the increase in students' learning motivation in mathematics subjects through differentiated learning based on content. This research uses a type of Classroom Action Research (PTK) which consists of two cycles using data collection techniques in the form of questionnaires and observation. This questionnaire is used to determine learning satisfaction that motivates students after carrying out learning strategy treatment. The results of research using differentiated learning based on content show an increase in students' learning motivation from pre-cycle activities 63,8% to 73,1% in cycle I, then continued with cycle II. It shows that the presentation average of students' learning motivation in mathematics subjects is 83,2% From the results of this research it can be concluded that using differentiated learning based on content is successful in increasing students' learning motivation in mathematics subjects in class XI TFLM-3 SMK Negeri 5 Surabaya.    

Low motivation to learn is often a serious challenge in one's academic development. Excessive use of social media can have both positive and negative impacts on learning motivation, depending on the usage policy. This study aims to analyze the magnitude of the relationship between the use of social media and the motivation to learn mathematics of class VIII students of SMP Negeri 6 Percut Sei Tuan. This study uses a quantitative approach with a correlational method. The sample consisted of 58 grade VIII students who were given video supplements related to learning materials at school through TikTok before formal learning was carried out. Based on the data analysis used using the Spearman correlation, the correlation coefficient value is + 0.744, it can be seen that the motivation to learn mathematics with the use of social media has a unidirectional relationship. This shows that if there is an increase in the value of using social media in learning, the value of math learning motivation will also increase linearly. By treating relevant learning videos through TikTok social media before learning takes place, educators are able to create a more interesting and intimate learning experience to increase student motivation in learning mathematics.

Learning that focuses on students' problem-solving abilities is the focus of higher education. Students who are able to develop critical thinking skills in solving problems are a necessity along with changes in workforce capability needs in the informatics era. One of the mathematics lessons at the higher education unit level is discrete mathematics. The problem that arises in discrete mathematics learning is that learning outcomes and the percentage of students completing lectures are still relatively low. The aim of this research is to improve students' solving abilities through the application of the project based learning method. This research uses classroom action research methods. The application of the project based learning method in discrete mathematics courses with graph material can improve students' abilities in solving mathematical problems, this can be seen from the research results after corrective actions were taken in learning activities in Cycles I and II. Based on the research results, it shows that through project-based learning, third semester RB class students in the Informatics Engineering Education Program at Indraprasta University PGRI Jakarta have improved their ability to solve mathematical problems in terms of individual grades and classical completion.  

The application of the STAD type cooperative learning method (Student Teams-Achievement Divisions) is a relevant strategy in efforts to improve students' mathematical abilities. In this research, we examine the effectiveness of using the STAD type cooperative learning style in improving students' mathematical abilities. This approach involves dividing students into small teams to encourage collaboration, joint problem solving, and knowledge exchange. We evaluated the impact of implementing this learning model on students' mathematical abilities and gained insight into effective learning strategies in the context of improving mathematics achievement.

This study aims to analyze students' mathematical connections through the application of the Think Talk Write (TTW) learning style and collaboration in the context of mathematics learning. The Think Talk Write (TTW) method emphasizes developing critical thinking, communication and writing skills in understanding mathematical concepts. Collaboration between students is also integrated to strengthen mathematical understanding through discussion and joint problem solving. This research uses a qualitative approach with case studies as the analytical framework. Data was collected through classroom observations, interviews with students, and analysis of students' writing. Research findings show that implementing the Think Talk Write (TTW) method with collaboration can improve students' mathematical connections, strengthen conceptual understanding, and improve communication and mathematical problem solving skills. Pedagogical implications of these findings are discussed to promote more effective and inclusive mathematics learning practices.

Mathematics learning has a significant role in student character building, with the main objective of developing logical, rational, critical, creative, systematic, and practical thinking patterns. However, there are still challenges in achieving this goal, such as lack of student interest, learning difficulties, and the availability of adequate resources. This article discusses the role of mathematics learning in students' character building and the importance of integrating mathematics learning with character building. Through a qualitative method with a literature study approach, data were taken from various sources such as journals, books, news, and other scientific research using the Google Scholar database with the keywords mathematics and student character from 2019 to 2024. The results showed that mathematics learning can shape students' character through the development of values such as discipline, honesty, hard work, creativity, curiosity, responsibility, communicative, and independence. Therefore, continuous efforts are needed to improve the quality of mathematics learning, taking into account the needs and interests of students and utilizing available learning technologies and resources. Collaboration between teachers, students, parents and other related parties is also important to create a conducive learning environment that supports students' development in mathematics.