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In learning mathematics, calculation techniques are indispensable. However, a common issue encountered is the lack of proficiency in calculations, whether it be addition, subtraction, multiplication, or division. Jarimatika is a method of mathematical calculation using the fingers as tools to facilitate arithmetic operations, especially multiplication. This activity aims to socialize and understand the responses of students and teachers towards the use of the Jarimatika method in elementary schools. The results of the activity showed that students were very enthusiastic during the activity and found it easier to perform multiplication operations using the Jarimatika method. The teachers' response was also very positive and they appreciated this activity. From this activity, it was proven that the Jarimatika method helps elementary school students become quicker and more proficient in multiplication operations

This research was conducted to improve learning outcomes on number sorting material using numerical jersey media in grade II SDN 02 Rowoyoso. This study uses a class action research method that uses II cycles in which each cycle consists of planning, implementing, observing, and reflecting activities. The data collection techniques used are observation, tests, and documentation. The results of classroom action research found that numerical jersey media can improve student learning outcomes. In the first cycle student learning outcomes were 55.55% (10 students who completed) and 44.44% (8 students who were not completed). While in cycle II student learning outcomes increased to 86.66% (13 students who completed) and 27.77% (5 students who have not completed). So it can be concluded that students experience improved learning outcomes and achieve the minimum completeness criteria determined.

This study investigates the use of formative assessments in improving student learning outcomes in mathematics. The research focuses on how regular, low-stakes assessments help teachers identify student misconceptions, provide timely feedback, and tailor instruction to meet students' needs. The study finds that formative assessments lead to higher student performance, particularly in understanding complex mathematical concepts. The paper explores various formative assessment techniques, such as quizzes, peer reviews, and self-assessments, and their effectiveness in fostering student learning and achievement in mathematics.

This study explores the effectiveness of inquirybased learning (IBL) in enhancing problemsolving skills among high school students in mathematics. The research is based on a case study conducted in a school where IBL methods were incorporated into the curriculum. The findings suggest that students engaged in inquirybased activities showed improved critical thinking and problemsolving abilities compared to traditional teaching methods. This paper discusses the impact of IBL on students' motivation and their ability to approach complex mathematical problems with greater confidence.

Currently, education is a serious problem, where many factors influence the development of education. One of them is in the current era of digitalization of education, where some teachers still experience limitations in the use of technology, requiring them to rely on conventional pedagogical and professional skills. This study aims to analyze the professional competence of mathematics teachers in implementing meaningful learning without the support of digital technology in junior high schools. This study uses a qualitative method with a qualitative descriptive research type. Data collection techniques include interviews and observations. The results of the study show that teachers who have strong professional competence, especially in mastering the material, contextual learning strategies, and building good interactions with students, are able to create meaningful learning even without using technology. Real project-based learning, the use of simple teaching aids, and interactive communication are the keys to the success of a teacher. These findings emphasize the importance of strengthening teacher core competencies in presenting relevant mathematics learning that is free from technological limitations.

In the world of education today, computers have an important role as a learning medium for efficient learning. The GeoGebra application is an application used to visualize mathematical objects quickly, accurately and effectively so that it can shorten the time in solving mathematical problems. This research uses a literature study type of research by identifying and evaluating the results of previous research. In this research, 5 previous journals were identified. From the results of this research, it was found that the use of GeoGebra in learning was quite good. This is because GeoGebra has a positive influence that can support the learning carried out.

Learning difficulties do not only occur in students attending primary to secondary school, but also occur in mathematics education students. This research uses the Systematic Literature Review research method. Mathematics education students are part of the teaching faculty who are hired to become educators, namely the inability to understand the material, this main factor is the main factor in the difficulty of learning mathematics, students in the first semester are vulnerable to semesters 1-3 where the learning method is between schools. and different lectures make students in the first semester of mathematics education experience a shock of understanding, students are required not only to gain understanding in lecture classes but also in seminars, presentations and research, this study concludes. But one of the main factors is external where jockeying has a domino effect Mathematics education students must be aware of this so that they do not become students who are dull in thinking, logic and the future. The author states that no matter how smart the student is, if they still use assignment coaching services, they can be said to be suffering from an illness as is another definition of learning difficulties..

This classroom action research aims to improve student learning outcomes by using media in mathematics learning for class VI students at SD Negeri Kaloy. Research includes Classroom Action Research. The subjects of this research were class VI students at SD Negeri Kaloy in the 2022/2023 academic year, totaling 27 students consisting of 14 male students and 13 female students, a class teacher, and a colleague. The techniques used to collect data in this research are observation and test techniques. The data obtained is in the form of test results and observation results as supporting data. The research data were analyzed using qualitative descriptions to describe the results of observations and quantitative descriptives to describe the percentage of test results in each cycle. The results of the research show that the use of spatial props can improve the quality of mathematics learning for class VI students at SD Negeri Kaloy. The results of the initial ability test (Cycle I) showed that of the 27 class VI students, only 11 students could be declared complete in learning by getting a score ≥ 70, while 16 students were declared incomplete with a score ≤ 70 with an average score of 69.1 . These results mean that it is not in accordance with the target set by researchers with learning completeness being 75%. The results of the second cycle test showed that of the 27 class VI students, only 21 students could be declared complete in their studies by getting a score of ≥ 70, while 6 students were declared incomplete with a score of ≤ 70 with an average score of 79.3. These results mean that it is in accordance with the target set by the researchers with learning completeness being 78%.

Contextual approach is a learning approach that correlates material with real life. There are many ways that are applied in contextual learning, one of them with learning activities outside or tourism works. This study aims to integrate the activities of pilgrimage to the grave of Gus Dur in learning mathematics can help students in grade 5 elementary school understand the concept of scale and distance more effectively. This case study is expected to provide insight into the benefits of combining local wisdom in the mathematics curriculum, as well as enriching teaching methods in elementary schools. This research is a qualitative study through a survey approach and literature study. The sample in this study was 30 students at the 5th grade level at SD Negeri 6 Kedungwuni Pekalongan Regency. Data collection techniques used by researchers are, using interviews with students and teachers. The results showed that tourism work activities can increase students' understanding and enthusiasm in understanding mathematical concepts.  

This research aims to improve mathematics learning outcomes in flat volume material through the application of the MESSAGE Type Accelerated Learning learning model (Mindset, Entrance, Switch-Ownership, Store, Act, Go-again, Engage) in grade 5 students at SDN Dukuh Kupang V Surabaya . The method used in this research is Classroom Action Research (PTK) which is carried out in two cycles, each consisting of planning, implementation, observation and reflection. The research results showed a significant increase in students' mathematics learning outcomes. In the pre-cycle, the percentage of student learning completion only reached 55%. After implementing the MESSAGE learning model in cycle I, the percentage of student learning completion increased to 70%. In cycle II, the percentage of student learning completeness further increased to 85%. This increase shows that the application of the MESSAGE Type Accelerated Learning learning model is effective in improving mathematics learning outcomes regarding volume of plane shapes in class 5 students. Based on the results of this research, it is concluded that the use of the MESSAGE learning model can increase student involvement and facilitate better understanding of concepts, thus having a positive impact on their mathematics learning outcomes. It is recommended for educators to consider using this model as an alternative in teaching mathematics.

Mathematics is a fundamental science that underpins many aspects of daily life.  Where mathematics can be used as a method of solving problems that we face in life activities, such as in using information, knowledge and seeing and using relationships between objects. Not only that, the important role of mathematics includes the formation and development of rational, logical, systematic and critical thinking skills. In the study conducted by Putrihapsari and Fauziah (2020), Nazir (2014) defines literature study as a research approach that involves evaluating a multitude of literature studies that are pertinent to the research being conducted. This strategy is employed in research as a preliminary stage to organise the investigation by gathering data from literature in the subject, without the necessity for direct involvement. By using the PjBL model, it is hoped that it can cover 21st century skills so that it can improve the quality of students' mathematical literacy skills. Given that students must collaborate from the outset, the Project Based Learning (PjBL) learning paradigm may assist them in developing the skills required to work effectively in groups. In order for students to comprehend the rationale and benefits of the mathematics education they receive in the classroom, this learning paradigm is essential for fostering mathematical literacy.

This study aims to improve the mathematics learning outcomes of 4th grade students of SDN Dukuh Kupang V, Panguragan District, Cirebon Regency Semester 2 of the 2022/2023 academic year by using the Problem Based Learning model. This research is a classroom action research (PTK) conducted in two cycles. The subjects in this study were 4th grade students of SDN Dukuh Kupang V Surabayai, totaling 30 students. The variables in this study consisted of independent variables, namely the Problem Based Learning model and the dependentvariable, namely math learning outcomes. Data collection techniques using test techniques. Data analysis techniques using comparative descriptive in the form of percentages of math learning outcomes in pre-cycle, cycle I and cycle II. Based on the results of the study, it can be concluded that learning with the Problem Based Learning model can improve learning outcomes in mathematics subjects on the perimeter area of flat shapes. The results before the action was taken,namely in the pre-cycle only 13 students or 43% were complete, in cycle I increased to 21 studentsor 70% who completed learning math and in cycle II increased again to 26 students or 86% who completed learning. This research is said to be successful because it reaches the performance indicator which is > 80% of all students with KKM 70.

This program aims to reduce the percentage of school dropouts in border islands. Through this program, researchers created an educational environment by involving students of the Study Program Student Association (HMPS). This program was held every Saturday in Wakarleli, Maluku Barat Daya, during October 2023 - November 2023 involving around 20 children in various age categories and around 5-10 students at each meeting. The method used in this activity is descriptive method. The activities supporting the program are educational games which are implemented at the beginning and at the end of the meeting, the introduction of letters and numbers, and counting activities. The results of evaluations and interviews show that this program can increase children's confidence levels, train their communication skills, patience, tolerance, and helping attitudes between children. In addition to the great benefits for the children, this program also provides huge benefits for the students and lecturers involved. For students, this program is considered to increase their creativity in making learning media. Where this skill is a much needed skill, especially for students of the Mathematics Education and PGSD Study Programs. In addition, for students of the Law Study Program, this activity can also foster sensitivity in society and improve their communication skills which are also needed in their future profession. In general, in this program students are trained to work together, socialize and build their confidence to be in public.

The low understanding of mathematical concepts experienced by students also has an impact on students' ability to solve problems related to mathematics because the concepts taught by teachers are never found in everyday life. Therefore, a learning approach is needed that encourages students to construct their own mathematical concepts based on experiences that occur in everyday life. The research method used in this research is Systematic Literature Review (SLR). The data collection process includes collecting and analyzing every published article and book that discusses mathematical concepts and the application of Realistic Mathematics Education (RME). The journals used in this research are national and international journals indexed by SINTA and SCOPUS. Research findings show that the RME approach has an important role in improving students' ability to understand mathematical concepts in several materials at every level of education.

This research aims to determine whether the development of teaching materials using the Kvisoft flipbook maker application on linear program material, the sub-material of linear inequalities in two variables, affects learning outcomes. This research method uses research and development, with 25 students as subjects. The research results show that in the effectiveness test, it was found that 21 out of 25 students were declared complete in learning mathematics using teaching modules using Kvisoft flipbook maker on linear program material developed by the author. Meanwhile, Class So's teaching module developed in this research was effective.

This reseacrh is intended to test the application of the gamification-based cooperative learning model and its influence on the mathematics learning outcomes of grade 4 students at SDN 1 Kayuambon. The cooperative model is a learning process that emphasizes cooperation and interaction so that students play an active role during the learning process. This cooperative learning model can be combined with a gamification-based learning model so that students can experience the learning process in a fun way. This research uses quantitative methods by comparing pretest and posttest data on the application of conventional models and gamification-based cooperative models. The research suggest an increase in learning outcomes in the pretest and posttest when the gamification-based cooperative model was applied by 8.14.

When learning mathematics, students sometimes experience errors in understanding concepts, data, procedures, and principles, especially in algebraic operations. This research analyzes students' errors in solving mathematics problems on algebraic operations material. The research method used is a descriptive method with a qualitative approach. The research subjects were class VIII students at SMP Negeri 4 Kawangkoan. The instruments used were written tests, interviews, and expert validation. Data analysis techniques use qualitative techniques, including data collection, reduction, and conclusion. The conclusions obtained include that students experience three types of errors in solving mathematics problems: data errors, theorem or definition errors, and technical errors.    

The focus of the article is to describe the use of a HOTS-based learning model that can improve the problem solving abilities of students in elementary schools as well as strategies that can be used in implementing HOTS learning in the classroom. This research uses a literature study method by examining several sources from journals and books related to the use of the HOTS-based learning model in improving the Problem Solving abilities of students in elementary schools. This research uses the Systematic Literature Review (SLR) method or literature review by systematically identifying journals. The steps in the SLR method are 1) Develop Research Questions, 2) Selection Criteria, 3) Developing The Search Strategy, 4) The Study Selection Process, 5) Appraising the Quality of Studies.

Abacus skills training has been identified as an effective method for improving students' basic mathematics abilities and mental calculation skills. This article discusses the implementation of Abacus skills training for teachers at Madrasah Ibtidaiyah Negeri (MIN) Bandar Lampung City with the aim of improving the quality of basic mathematics teaching. In the context of MIN, this training is considered relevant to develop teachers' potential in teaching mathematics and improve students' ability to understand mathematical concepts better. This article also describes the steps for implementing Abacus skills training at MIN and its benefits in improving the quality of mathematics learning at this Islamic educational institution

Improving the quality of education in Indonesia can be developed through the implementation of educational reform. One form of educational reform can be carried out by using a learning approach that can help teachers produce experts using the STEM (Science, Technology, Engineering, and Mathematics) approach. Initial findings reveal that only around 47.8% of SMA N 2 Medan students (class This research aims to see the effectiveness of the STEM approach in improving the critical thinking skills of SMA N 2 Medan students. The research method used is an experimental design with Non Equivalent Control Group Design. The research subjects were students of SMA N 2 Medan. The results showed that the sig (2-tailed) Equal variances value was assumed to be 0.000 < 0.05. Therefore, Ho is rejected and Ha is accepted, which means there is a significant difference in critical thinking abilities after students use the Equal variance method. The STEM-PBL approach, compared with the innovative K13 approach. The average critical thinking skills scores of the control class in the pre-test and post-test were 38 and 79.5. The coefficient remains at 0.676 and is significant at 0.000. This means the correlation is positive. Therefore, learning with a STEM approach has proven to be effective in improving the critical thinking skills of SMA N 2 Medan students.