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The mathematics learning results of grade IV students of SDN Dukuh Kupang II/489 Surabaya were initially still relatively low, there were still many students who had difficulties with the concept of presenting bar chart data. For this reason, the researcher conducted a study with the aim of finding out the improvement of student learning results by using the Teaching at The Right Level (TaRL) approach in grade IV mathematics learning at SDN Dukuh Kupang II/489 Surabaya. This research uses the type of Classroom Action Research (PTK). The subject of the study was 28 students in class IV. In the 1st cycle stage, only 32.2% of students achieved the completeness of learning results, this percentage then experienced a significant increase to 82.1% in the 2nd cycle. Based on this study, it can be concluded that the Teaching at The Right Level (TaRL) approach can improve student learning results in mathematics subjects, especially data presentation materials in grade IV of SDN Dukuh Kupang II/489 Surabaya.

This research aims to describe the improvement in learning outcomes in spatial volume material using the TARL approach for class IV students at SDN 01 Kanigoro. This research was carried out using a type of Classroom Action Research (PTK) which was carried out in 2 cycles which aimed to determine the increase in the completeness of student learning outcomes through the TARL learning approach. The research subjects were 12 class IV students at SDN 01 Kanigoro. The research results show an increase in student learning outcomes in mathematics subjects using the TARL approach at SDN 01 Kanigoro. Based on the results of pre-cycle action activities, there were 3 students who completed and 9 students who did not complete. In the first cycle, there were 7 students who completed and 5 students who did not complete. while in the second cycle there were 11 students who completed it and 1 student who did not complete it. In conclusion, by using the TARL approach, student learning outcomes in class can improve.  

This research aims to describe the improvement in learning outcomes in spatial volume material using the TARL approach for class IV students at SDN 01 Kanigoro. This research was carried out using a type of Classroom Action Research (PTK) which was carried out in 2 cycles which aimed to determine the increase in the completeness of student learning outcomes through the TARL learning approach. The research subjects were 12 class IV students at SDN 01 Kanigoro. The research results show an increase in student learning outcomes in mathematics subjects using the TARL approach at SDN 01 Kanigoro. Based on the results of pre-cycle action activities, there were 3 students who completed and 9 students who did not complete. In the first cycle, there were 7 students who completed and 5 students who did not complete. while in the second cycle there were 11 students who completed it and 1 student who did not complete it. In conclusion, by using the TARL approach, student learning outcomes in class can improve.

This study aims to determine the pattern of educational interaction that occurs between teachers and students, and how the impact and factors that influence the mathematics learning process. The pattern of educational interaction is a process of teaching and learning interaction activities carried out by teachers and students in the classroom in order to influence the course of the learning process to achieve certain goals. This study uses a qualitative descriptive method. The subjects of the study were mathematics teachers and students of grade IX of SMP N 3 Nusawungu and students of grade VIII of SMP PGRI 18 Cimanggu. In determining the research subjects in this study, a purposive sampling technique was used, namely a technique for taking samples of data sources with certain considerations. Data collection techniques used observation sheets, interview guidelines, and field notes. The data analysis used was a qualitative descriptive data analysis based on Flanders' analysis theory. The results of this study are that educational interactions that occur in mathematics learning produce 3 interaction patterns, namely teacher-centered interaction patterns, student-centered interaction patterns, and balanced teacher-student interaction patterns. Interaction patterns will have many impacts on the learning process such as discussions between students, questions and answers between teachers and students, noise and silence. The impact will appear according to the teaching method used by the teacher, as well as factors that influence the learning process such as student attitudes, motivation, and learning approaches used.    

This study investigates the relationship between mathematics self-efficacy and problem-solving ability, exploring the role of the Jigsaw cooperative learning model in enhancing both factors. Self-efficacy, defined as students' belief in their ability to successfully perform mathematical tasks, has been shown to significantly impact students' problem-solving capabilities. The research focuses on understanding how this belief influences academic performance and how the Jigsaw model, which fosters collaborative learning, affects students’ self-efficacy and problem-solving skills. A survey-based research design was employed, with participants consisting of university students enrolled in mathematics courses. Data collection involved administering a self-efficacy scale to assess students' confidence in solving mathematical problems and a problem-solving test to evaluate their abilities. Path analysis was used to determine the relationship between self-efficacy and problem-solving skills, and the effect of the Jigsaw model was evaluated by comparing pre- and post-test scores between the experimental and control groups. The results revealed a strong positive relationship between self-efficacy and problem-solving ability (β = 0.45). Additionally, the Jigsaw model significantly enhanced this relationship, improving both students' self-efficacy and problem-solving performance. These findings highlight the importance of fostering self-efficacy in mathematics education and the effectiveness of the Jigsaw cooperative learning model in achieving this goal. The study provides valuable insights into improving teaching strategies in mathematics, particularly for subjects requiring critical thinking and problem-solving skills, by promoting a more interactive and supportive learning environment.

Courses are a place for study material that must be studied by students and must be delivered by a lecturer. Courses are an important element in the smallest unit of student learning transactions, which are served by educational institutions to measure their achievement index. The course achievement index is seen based on the value intervals set by the educational institution. Udayana University is one of the educational institutions in Indonesia and is famous in Bali for one of its study programs, namely the mathematics study program which is within the scope of the Faculty of Mathematics and Natural Sciences. The Udayana University Mathematics Study Program has 8 assessment letter scales, namely A, B+, B, C+, C, D+, D, E with the provision that the achievement index for each course is above the letter scale C. One of the purposes of having an achievement index is that it can be used in determine the taking of prerequisite courses for other courses.

This study aims to implement the cooperative learning model of Team Games Tournament (TGT) to improve students' understanding of mathematical concepts on fractions at SDN 07 Tilamuta. The research method used is classroom action research (CAR) with two cycles, each consisting of planning, implementation, observation, and reflection. The subjects of this study were 30 fifth-grade students. The results indicate that the application of the TGT learning model can enhance students' understanding of mathematical concepts. This is evidenced by the increase in the average test scores of concept understanding in each cycle. In the first cycle, the average student score was 65, which increased to 80 in the second cycle. Furthermore, students' learning activities also improved, marked by their active participation in group discussions and game tournaments. In conclusion, the implementation of the TGT cooperative learning model is effective in improving students' understanding of mathematical concepts on fractions at SDN 07 Tilamuta. It is recommended that teachers consider using this learning model in teaching mathematics for other topics as well.

study aims to improve students' learning outcomes in understanding geometric shapes, particularly in surface area and volume, through the use of cube and rectangular prism teaching aids. Sixth-grade students at UPTD SD Negeri 3 Bakam often struggle with this topic, primarily due to difficulties in grasping multiplication concepts and related formulas. The method used in this research is a cooperative learning approach with teaching aids designed to facilitate student comprehension. The study was conducted in two cycles. In the pre-cycle phase, only 33.33% of the 21 students scored above the minimum passing grade (70), while 66.67% scored below it. After applying the method in Cycle I, learning mastery increased to 61.33%, with 12 students achieving a score of 70 or above. In Cycle II, learning outcomes improved significantly, with 95.33% of students achieving mastery. Additionally, the teacher's teaching effectiveness improved, with an average score of 82.38, categorized as good. The results indicate that the use of cube and rectangular prism teaching aids can enhance students' understanding of surface area and volume concepts, contributing significantly to their academic performance improvement

The aim of the study is improving students learning outcomes through the use of congklak media in mathematics lessons on the topic of Least Common Multiple (LCM). The study employs a descriptive qualitative method with a sample of 21 fourth-grade students from State Elementary School 13 Merawang. The Classroom Action Research was conducted over two cycles, each consisting of two meetings. The stages of classroom action research include planning, implementation, observation, and reflection. Based on the learning process results using congklak media, there was a significant improvement in student learning outcomes, as evidenced by the number of students meeting the minimum mastery criteria and the average class score. In the first cycle, the number of students meeting the mastery criteria was 33.33 percent in the first meeting and 47.61 percent in the second meeting. In the second cycle, the number of students meeting the mastery criteria increased to 76.20 percent in the first meeting and 95 percent in the second meeting. The average class score showed a gradual improvement, reaching 80.47 in the second cycle. The implementation of learning using congklak media was able to significantly enhance students' learning outcomes, achieving a significant number of students meeting the mastery criteria in one class.

The Active Learning method is active learning. Most practitioners and observers refer to it as a learning by doing strategy. The approach views learning as a process of building understanding through experience and information. With this approach, learners' unique perceptions, knowledge and feelings influence the learning process. The problems in this study are (1) How is student interest in learning in the application of the Active Learning learning model using smart wheel games multiplication material of class III mathematics lessons SDIT Baitul Ilmi (2) Whether the application of the Active Learning learning model using smart wheel games can increase student interest in learning multiplication material of class III mathematics lessons SDIT Baitul Ilmi. This research includes Classroom Action Research (PTK) conducted in two cycles using quantitative analysis and qualitative analysis methods.  Each cycle consists of four stages, namely design, implementation, observation, and reflection. The subjects of this study were third grade students of SDIT Baitul Ilmi, totalling 33 students. The research data was obtained using teacher and student observation sheets and student learning interest test results, then the data was analysed using the percentage formula. The results obtained are (1) teacher activity in cycle I using the Active Learning model from 87.50% to 93.75% in cycle II, (2) student activity in cycle I using the Active Learning model 54.64% to 85.17% and, (3) the results of student learning interest in Mathematics subjects cycle I using Active Learning 32.25% to 83.87% in cycle II. This shows that the results of students' confidence in Mathematics subjects using the Active Learning model show very positive results. Based on the results of this study, it can increase students' interest in learning to be more active and the teacher's ability to improve for the better. 

The Active Learning method is active learning. Most practitioners and observers refer to it as a learning by doing strategy. The approach views learning as a process of building understanding through experience and information. With this approach, learners' unique perceptions, knowledge and feelings influence the learning process. The problems in this study are (1) How is student interest in learning in the application of the Active Learning learning model using smart wheel games multiplication material of class III mathematics lessons SDIT Baitul Ilmi (2) Whether the application of the Active Learning learning model using smart wheel games can increase student interest in learning multiplication material of class III mathematics lessons SDIT Baitul Ilmi. This research includes Classroom Action Research (PTK) conducted in two cycles using quantitative analysis and qualitative analysis methods.  Each cycle consists of four stages, namely design, implementation, observation, and reflection. The subjects of this study were third grade students of SDIT Baitul Ilmi, totalling 33 students. The research data was obtained using teacher and student observation sheets and student learning interest test results, then the data was analysed using the percentage formula. The results obtained are (1) teacher activity in cycle I using the Active Learning model from 87.50% to 93.75% in cycle II, (2) student activity in cycle I using the Active Learning model 54.64% to 85.17% and, (3) the results of student learning interest in Mathematics subjects cycle I using Active Learning 32.25% to 83.87% in cycle II. This shows that the results of students' confidence in Mathematics subjects using the Active Learning model show very positive results. Based on the results of this study, it can increase students' interest in learning to be more active and the teacher's ability to improve for the better. 

Disciplinary character is an attitude and feeling of being obedient and obedient to values ​​that are believed to be one's responsibility. Therefore, teachers try to develop students' disciplined character, one of which is by applying the role-playing method. This research aims to develop students' disciplined character through role-playing methods on Pancasila values. This researcher uses a qualitative method with the Classroom Action Research (PTK) type, which consists of 2 cycles and each cycle has 2 meetings. The data collection techniques are through observation, interviews and documentation. The research results obtained from the application of the role playing method in PPKN subjects on Pancasila values ​​for teachers in cycle I increased from 75.5% to cycle II 88.75%. The application of the role playing method in PPKN subjects regarding Pancasila values ​​to students in cycle I was 67.5% and cycle II was 93.75%. Meanwhile, student learning outcomes in the mathematics subject material flat shapes after implementing the picture and picture model increased with the average score in cycle I being 65% and cycle II being 85%.

Disciplinary character is an attitude and feeling of being obedient and obedient to values ​​that are believed to be one's responsibility. Therefore, teachers try to develop students' disciplined character, one of which is by applying the role-playing method. This research aims to develop students' disciplined character through role-playing methods on Pancasila values. This researcher uses a qualitative method with the Classroom Action Research (PTK) type, which consists of 2 cycles and each cycle has 2 meetings. The data collection techniques are through observation, interviews and documentation. The research results obtained from the application of the role playing method in PPKN subjects on Pancasila values ​​for teachers in cycle I increased from 75.5% to cycle II 88.75%. The application of the role playing method in PPKN subjects regarding Pancasila values ​​to students in cycle I was 67.5% and cycle II was 93.75%. Meanwhile, student learning outcomes in the mathematics subject material flat shapes after implementing the picture and picture model increased with the average score in cycle I being 65% and cycle II being 85%.

According to academic data, student math ability tests at MTSS PAB 5 Klambir Lima yield mixed results. There are students who understand math well, but there are also those who have difficulty understanding the mathematical concepts themselves. Math teachers at this school have difficulty designing lessons that can meet the needs of students with different levels of understanding. So, it is necessary to group student data to produce educational decision-making and improve learning effectiveness, such as through data mining. Data mining is a semi-automated process that uses machine learning techniques, mathematics, statistics, and artificial intelligence to identify and organize information contained in large databases. The process of finding information can be done by determining the decision rule based based on the level of student understanding in mathematics lessons using the Decision Tree Algorithm C4.5 method. The use of the Decision Tree algorithm C4.5 aims to make it easier to determine decision rules based on gender, Predicate, teacher teaching methods, student learning interest, and level of understanding. Based on the results of the study, it was found that if the teacher's teaching method is good, the predicate value is B, the student's learning interest is less interested, and the gender is male, then the student's level of understanding in mathematics lessons is not understood.

One effort to improve elementary school students' arithmetic (numeracy) skills is to use learning media in the form of an abacus. The abacus, also known as mental arithmetic, is a medium for developing thinking and calculating abilities in mathematics and is able to balance the abilities of the right and left brain. Therefore, SD 01 Ulak Karang teachers need to improve their skills in using the abacus, so that these skills can be mastered and provided to students well. The method of this activity includes basic level abacus training, namely (1) introducing body posture when using an abacus, (2) introducing the rules and how to operate/move the abacus beads, (3) introducing number notations represented by one or a group of abacus beads.  (4) introduce the technique of calculating addition and subtraction using an abacus and practice questions. Based on the results of this activity, the teachers at SDN 01 Ulak Karang Selatan are familiar with the technique of calculating with an abacus and can use the abacus to carry out addition and subtraction operations correctly and quickly. The teachers were very enthusiastic about being able to master all the techniques and calculation operations with the abacus.

This research aims to improve the science and science learning outcomes of class IV students at SDN 1 Pokak academic year 2023/2024. This research uses the Classroom Action Research (PTK) method which uses the Kemmis and Taggart model. The subjects of this research were class IV students at SDN 1 Pokak, totaling 14 participants educate. Data collection techniques through evaluation tests, observation and documentation. The research results show that: (1) students become more active in learning activities. (2) there was an increase in mathematics learning outcomes for class IV students at SDN 1 Pokak. This increase was proven by the results of the pre-cycle test, the class average value was 72.5, then it increased in cycle I to 82.5 and increased again in cycle II to 85.7.    

This research aims to produce mathematics learning tools with the Guided Discovery Learning (GDL) Model which is Valid, practical, and effective to improve the mathematical problem-solving abilities of students in class VII SMP/MTsN. The Plomp model is used because it is more flexible than Plomp's other models; beside that, at each step, it contains activities development that can be adapted to the characteristics of the research. Instruments were used during the study in the form of observation sheets, interview guidelines, questionnaires, validation sheets, learning tools, and tests of mathematical problem-solving skills learners. The results of the validity test show that the GDL-based mathematics learning tool is declared valid according to the experts. The results of the practicality test show that GDL-based mathematics learning tools are practical based on teachers and students as users. The effectiveness test results show that students' learning outcomes after learning are better by showing the percentage of completeness that reaches 75.86% exceeding the specified effectiveness limit of 70%. In addition, the device is said to be effective; it can be seen from the activities of students during the learning process that it has increased. Based on the validity, practicality, and effectiveness tests, the mathematics learning tools based on GDL in the Association material for Class VII Junior High School students are valid, practical, and effective

Most children are very unenthusiastic about learning mathematics. This service is carried out so that the children of the GMIT Logos Kilakawa Congregation are motivated so that the children are more enthusiastic in learning mathematics so that they are no longer afraid of mathematics and they don't even experience difficulties. The methods used are tutoring and playing. The result of this activity is that the children are very enthusiastic and want to learn more about mathematics.

This research aims to determine the learning independence of class III students at SDN 167 Pekanbaru in mathematics learning before and after using inquiry strategies. This research is classroom action research using the Kemmis and Taggart method, namely (plan, action, observation and reflection). This research consists of 2 cycles, each with 2 meetings. Data collection techniques use observation, field notes and documentation. Data analysis uses quantitative and qualitative. Research results: In the Pre-Cycle, most students were in the Less Independent category. Entering Cycle I, there is a clear improvement. The number of students in the Sufficiently Independent category has increased, but there are still students in the Less Independent category. In Cycle II, the most striking changes occurred. The number of students in the Very Independent category increased significantly. This shows that the majority of students now have a high level of independence, with great achievements in increasing their independence compared to the previous cycle.

The influence of early mathematics learning and learning motivation on student learning outcomes is very significant [1]. Students' numeracy literacy skills need to be supported by the ability to learn mathematics as early as possible. Advanced mathematics learning needs to be supported by good arithmetic skills. Every learning process is expected to produce good learning outcomes. Conventional mathematics learning is difficult for low-level students to understand. Guidebooks that are in accordance with the learning curriculum tend to present mathematical concepts that are textual. In order for mathematics learning to be more interesting for students, it is necessary to develop learning media that are easily accessible to students and educators. One application that can be used is interactive Powerpoint [2]. In this community service, a learning media about arithmetic was developed that underlies every logic of calculation in advanced mathematics. Assistance was given to students in grade III of elementary school, with the pretest method, presentation of material using interactive Powerpoint media, and posttest. The validation test of the learning media was carried out by educators by providing an average test result of 84.36%. The results of this community service state that arithmetic learning media using interactive Powerpoint can be used in grade III of elementary school.