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Mathematics and Physics are subjects that are not only difficult for students but also difficult to do Teacher. To make it easier to understand the material, Geogebra software is used. In the community service, Geogebra training is given to high school teachers in the field of Mathematics and Physics teacher in Jambi City. The training was carried out online involving 10 lecturers and 5 assistants. The training consisted of 4 sessions carried out over 2 days by 31 Mathematics and Physics teachers. Training is divided into 2 classes for more effective. From the results of the training, the ability to use Geogebra increased by 38.05%. The average level of participant satisfaction with the implementation of the research was 4.15 in (a scale 5)

This research aims to determine students' ability to understand mathematical concepts through the application of the Realistic Mathematics Education learning approach and to find out how the students' answers process in solving problems on tests of students' ability to understand mathematical concepts after applying the Realistic Mathematics Education learning approach in class VIII-1 of SMP Nurul Islam Indonesia Medan. This type of research is classroom action research through cyclical learning stages. The subjects of this research were 13 students in class VIII-1 of SMP Nurul Islam Indonesia Medan and the object of this research was the students' ability to understand mathematical concepts by applying the Realistic Mathematics Education learning approach to statistical material. Based on the research results, it was found that by applying the Realistic Mathematics Education learning approach, students' ability to understand mathematical concepts in statistical material in class VIII-1 at Nurul Islam Indonesia Middle School in Medan was improved, namely in cycle I the average student ability was only 30.76 with a completion percentage of only 8% of students completed. In cycle II the average student ability increased to 92.95 with a student completion percentage of 100%, so that students had met the classical completion percentage, namely ≥85%. The results of this research show that by applying the Realistic Mathematics Education learning approach to statistics material in class VIII-1 of Nurul Islam Indonesia Middle School in Medan, students can improve their ability to understand mathematical concepts.

This research aims: (1) students' mathematical reasoning ability using the Discovery Learning learning model is higher than students' mathematical reasoning ability using conventional learning models in class VII MTs Yaspi Labuhan Deli, (2) the process of solving answers made by students in solving problems in the Discovery Learning learning model and Conventional learning model. This type of research is quantitative research with Quasi-Experimental methods. This research was conducted at MTs Yaspi Labuhan Deli. The sampling technique in this study uses Purposive Sampling techniques, namely class VII-A as a class taught with a Discovery Learning learning model and class VII-B as a class taught with a conventional learning model. The data collection instrument used was in the form of observation sheets and student mathematical reasoning ability test sheets in the form of 3 essay questions. Data analysis in this study used t-Test with Independent Sample t-Test technique with the help of SPSS 20 program. The results of this study showed that the average score of classes taught using the discovery learning model was 78,01 and classes taught using conventional learning models were 72,22. For hypothesis testing carried out using a t-test, from the calculation results obtained a value of  (2.664) >  (1.66757) with a Sig.2-tailed level of 0.010 < 0.05, which means that  rejected and  was accepted, so that it is concluded that there is a significant difference in the average mathematical reasoning ability of students using the Discovery Learning learning model and the Conventional learning model. Based on the analysis of the process of completing students' answers to the mathematical reasoning ability test that get Discovery Learning learning is better than students who get conventional learning.

Education in elementary schools has the aim of helping students understand problems in everyday life. The national education system states that education aims to develop the potential of students to become human beings who have faith, noble character, health, knowledge and responsibility. In the context of mathematics education, the PMRI (Indonesian Realistic Mathematics Education) approach is used to help students understand mathematical concepts through real experiences and the context of everyday life. The data grouping learning trajectory using the PMRI approach aims to help grade 1 elementary school students understand the concept of data grouping. The use of sorting and choosing props can also improve the learning outcomes of low grade students in sorting and selecting certain objects or concepts. The aim of this research is that it is hoped that students can learn more effectively through direct experience, visualization and physical movements involved in the sorting and choosing process. Data was collected through interviews and tests. Based on the results and discussion of the research that has been conducted, it can be concluded that the design of a data grouping learning trajectory for elementary school students using an Indonesian realistic mathematics education approach is theoretically able to provide a deeper understanding of data grouping for grade I elementary school students. With the principles in PMRI, students are given the opportunity to develop a conceptual understanding of data grouping with the help of the images provided.

The objective of this research is to investigate the potential impact of implementing the TPS cooperative learning model on enhancing the self-confidence and mathematics communication abilities of seventh-grade students at SMP Negeri 5 Percut Sei Tuan. The specific focus will be on the Set content. This study used a class action research design, consisting of two distinct cycles. Each iteration comprises two meetings. The participants in this research consisted of 28 students from class VII-8 of SMP Negeri 5 Percut Sei Tuan. The primary focus of this study is to enhance students' self-confidence and mathematical communication abilities by using the TPS cooperative learning model on Set material at SMP Negeri 5 Percut Sei Tuan during the academic year 2022/2023. Based on the findings derived from the analysis of the data, it was observed that the mean score for students' initial self-confidence was 53.61. Additionally, the mean test score for students' initial communication skills was found to be 44.92. Among the participants, a total of 3 students (13.04%) demonstrated mastery in this area, while the remaining 20 students (86.95%) had not yet achieved mastery. The learning process in cycle I was conducted using the TPS model. As a result, the average score of student confidence increased to 62.14, while the average score of the mathematical communication ability test increased to 55.80. Out of the total number of students, 8 students (34.78%) reached the completion criteria, while 15 students (65.21%) did not reach the completion criteria. In the second cycle, there was an observed increase in student performance. The average score for student confidence was recorded as 76.29, while the average score for the mathematical communication ability test was 75.97. Out of the total number of students, 19 students (82.60%) achieved completeness in the test, while 4 students (17.40%) did not reach completeness. The self-confidence questionnaire and mathematical communication skills exam administered in cycle II yielded results indicating a satisfactory level of student proficiency. 

The purpose of this study is to ascertain how fourth grade students at SDN Keleyan 2 are impacted in terms of their mathematical literacy by realistic math instruction grounded in Madurese ethnomathematics. This is a quantitative study using an experimental research design; a quasi-experimental design and a nonequivalent control group design are the types of research designs employed. 48 SDN Keleyan 2 class IV students served as samples. Classes experimental and control were employed in this study. In this study, tests of mathematical literacy and observation were used as data gathering methods. The data analysis includes an independent sample t-test for hypothesis testing, homogeneity testing, and a prerequisite test utilizing the normality test. Ho is rejected and Ha is approved based on the findings of the independent sample t-test data analysis, which showed that t-test = 7,757 > t-table = 2,012. As a result, it was determined that fourth grade pupils at SDN Keleyan 2 had significantly higher mathematical literacy levels when the model realistic mathematic education learning based on Madurese ethnomathematics was applied.

Students’ understanding of concept can be measured and assessed using mathematical concept understanding test instruments. The instrument to be used must be prepared to meet the criteria for a good instrument. Therefore, the aim of this research is to determine the validity and reliability of students' conceptual understanding questions in learning assessments. This type of research is qualitative research using descriptive methods. Data was obtained through tests and interviews with mathematics subject teachers. The subjects in this research were class IX students at MTsN 2 Kerinci, totaling 22 students in 1 class. Based on the results of validity calculations using the Pearson Product Moment formula and t test, as well as calculations of question reliability using the Cronbach's Alpha formula, it was found that each question item was valid and reliable, so this test instrument can be used to measure students' ability to understand mathematical concepts.

This research is motivated by the implementation of the independent vocational school curriculum in the Jakarta area, especially East Jakarta, which has begun to be implemented in the 2022/2020 academic year. Teachers and students in this case still do not have an understanding and readiness regarding the system for implementing the independent curriculum in the learning process, because they are still influenced by The learning system in the 2013 curriculum has not been fully implemented well in schools, causing teachers and students to be overwhelmed in preparing and adapting to be able to carry out learning activities well. The aim of the research is to determine Mathematics and Student learning in the Implementation of the Merdeka Vocational School Curriculum in East Jakarta. This type of research is descriptive research with a qualitative approach. This research was carried out at 2 vocational schools in East Jakarta with a total of 5 teachers as research informants. Data collection techniques through interviews and documentation. Based on the research results, it shows that the teachers' interviews show that students do not understand how to use the 2018 revised curriculum and the Merdeka curriculum itself.

The importance of using media in the mathematics learning process has become the main focus in increasing the effectiveness and attractiveness of learning. One interesting approach is the development of opportunity card-based learning media. This research aims to develop and release opportunity card media as a mathematics learning aid that can increase students' understanding of concepts and interest in learning. This media development is carried out through the stages of requirements, design analysis, development and evaluation. The research method used is development research using the Kemp model which includes several stages, such as needs analysis, planning, development, implementation and evaluation. Each stage has specific steps that help process developers design and organize learning materials more effectively. The research subjects involved class XII students at SMA Negeri 62 Jakarta. The research results showed that the opportunity card media developed received a positive response from students and teachers. Understanding of mathematical concepts increased significantly, and students' interest in learning also increased. and also provide an interesting learning experience and can increase student involvement in learning.

The importance of using media in the mathematics learning process has become the main focus in increasing the effectiveness and attractiveness of learning. One interesting approach is the development of opportunity card-based learning media. This research aims to develop and release opportunity card media as a mathematics learning aid that can increase students' understanding of concepts and interest in learning. This media development is carried out through the stages of requirements, design analysis, development and evaluation. The research method used is development research using the Kemp model which includes several stages, such as needs analysis, planning, development, implementation and evaluation. Each stage has specific steps that help process developers design and organize learning materials more effectively. The research subjects involved class XII students at SMA Negeri 62 Jakarta. The research results showed that the opportunity card media developed received a positive response from students and teachers. Understanding of mathematical concepts increased significantly, and students' interest in learning also increased. and also provide an interesting learning experience and can increase student involvement in learning.

Understanding concepts is very important in learning mathematics, because with a thorough understanding, students can solve a problem and are able to apply this learning to the real world. This research aims to develop and test the validity of conceptual understanding ability questions on set question material in Class VIID MTsN 2 Kerinci. This type of research uses development research. The research subjects were class VII D students consisting of 26 students. The data collection techniques used were tests, interviews and documentation. The results of the research show that students have a very good understanding of concepts. It can be seen from the results of the analysis of the test question data that it can be seen that there are 8 students (22.9%) included in the category of having the ability to understand concepts very well, 5 students (14.3%) included in the category of having the ability understanding of the concept was good, 7 students (20.0%) were in the sufficient category, and 5 students (14.3%) were in the poor category. This means that overall there are 8 students out of 25 students who have the ability to understand concepts in the very good category. This shows that set material questions have a potential effect on students' ability to understand concepts.

High Order Thinking Skill (HOTS) is a way of thinking for students at a higher cognitive level. This research aims to prove whether the implementation of HOTS-based learning has an impact in improving students' critical thinking skills in mathematics learning in elementary schools. The research method used is a literature review using the Google Scholar and Semantik Scholar databases for the 2020-2023 period. The HOTS-based learning model focuses on developing analyzing, evaluating and creating which refers to students' abilities in critical thinking. Based on the 8 selected articles, it shows that the implementation of HOTS learning in mathematics subjects can be implemented through learning models such as Game Based Learning or Digital Game Based Learning, teacher skills in implementing learning and developing assessments need to be considered. The application of HOTS learning is considered effective and able to improve students' critical thinking skills.

Over time, the progress of science, technology and information is growing very rapidly. One of the things related to this problem is that the children of the nation must now master and study the developing science and technology. Utilizing science technology is now very important. The computer is one example of a technological tool that can be used. Regarding computers, we must first study in detail about programming algorithms that have applications and functions for us in education and everyday life. The purpose  of writing this article is to examine the application and function of programming algorithms. Then the writing of this article use the literature study method and library research, namely by studying systematically and structured about programming algorithms. Data collection is done by online books or offline books, reputable scientific journals and sources from Google Scholar, Digital Library, website research and so on. The result of writing this article is that the application or presentation of programming algorithms can be seen in examples of application in mathematics. Writing an algorithm is not bound by a certain rule, but it must be clear what it means for each step of the algorithm. Many functions are very important in programming algorithms. The main function of programming algorithms is to solve a problem. This algorithm is an important thing in the activity of making a program.

This research aims to produce intuitive, interesting, and efficient mathematics learning media. This research is a development research that uses research and development (r&d) with the addie model that covers a sequence of stages ranging from analysis, design, development, implementation, and evaluation. This study was conducted on students of x grade smk netherlands 37 south jakarta. The research subjects that used are students of class xi with bintaro learning media. The number of students in the class is 28 students. The data collection techniques that used are validation and questionnaire filling. The result of this study shows that the use of bintaro props can be used as an alternative to help students to understand mathematics lesson on trigonometric material.

This research aims to determine the influence of students' learning activities on the ability to understanding mathematical concepts through the STEAM Learning Approach Makerspace model based on PBL on SPLDV materials. As for the type of research Quasi-Experiments. The population in this study was 90 students who were distributed into 3 classes with 2 classes that sampled grades VIII A and VIII C. The sampling techniques in this study used randomized classes and data collection techniques in this study were tests and observations, while the research instruments used preliminary tests and final tests to measure the ability to understand mathematical concepts and observation sheets to see students' learning activities. Data analysis techniques using a two-way ANOVA test. The research showed that there is an influence of the PBL-based Makerspace STEAM Learning Approach model on the ability to understand mathematical concepts, there is no influence on students' learning activities on mathematical concept comprehension capabilities, and there is no interaction between the PBL-based Stem Learning Approach Makerspace model and student learning activities on the ability to understand mathematical concepts. Conclusion, there is a positive direct effect of cognitive structures on the ability to understanding mathematical concepts.

This research reveals the implementation of the Pancasila Student Profile Strengthening Project (P5) at SD Pembangunan Laboratorium UNP with the aim of understanding the implementation of P5 in the school. The research method used is qualitative with data collection through observation and interviews. The results showed that P5 has been implemented since the beginning of the semester of 2023, with activities taking place every three months. Full participation of students and the role of educator mentors are seen in the implementation of P5. P5 is themed "Sustainable Lifestyle," where each subject has different P5 activities. For example, in Mathematics the emphasis is on numeracy skills, Indonesian focuses on communication skills and poetry, Civics emphasizes attitudes in accordance with Pancasila, while Islamic Religion directs the formation of noble morals. This research shows that the implementation of P5 has a positive impact, improving cooperation, collaboration, and enthusiasm for learning for students.

Mathematics lessons are lessons that are able to provide students with insight into gaining knowledge systematically or how to solve a mathematical problem. One of the goals of learning mathematics is to develop problem solving abilities. This indicates that problem solving is a very important ability to hone in learning mathematics. The method used is literature study or literature review. The study sources are in the form of reference books, published scientific journals, and references on websites accessed via the internet. Theoretical references obtained through literature study research will be used as the basic foundation and main tool for further practice which will be followed up with field research. Polya's theory is a systematic approach to solving mathematical problems which consists of four main steps, namely understanding the problem, planning a solution, implementing the plan, and checking again. This theory has been applied in various mathematics learning contexts, such as in analyzing the difficulty of solving mathematical problems on various materials and levels of difficulty.

This research aims to evaluate the impact of student participation in the campus teaching program 6th generation on the learning process carried out at SDN Kalangsemanding in the subjects of Mathematics, Science, Indonesian. The focus of this research is to identify the impact of the contribution of campus teaching program students 6 to the development of students' learning skills at the elementary school level. The research methods used in this study involve direct observation, interviews, and data analysis to measure improvements in learning skills in the classroom, social interactions with teachers and friends, as well as the positive or negative impacts of this program. The results of the research are expected to provide insight into the effectiveness of campus student participation in teaching 6 in improving the quality of learning in elementary schools. Students can feel inspired by seeing younger students who already have the knowledge and skills they want. The presence of campus students teaching at target schools can motivate students to pursue higher education and pursue their dreams. Students who may initially have difficulty connecting with teachers can still find a stronger connection or identification with younger campus teaching students and a less large age difference can create a better and more interesting learning environment. They were very happy with the presence of students at school, until the time for goodbye arrived, they were not willing to let campus students go to their respective campuses to teach.

The influence of the development of Science and Technology (IPTEK) on the world of education, so that both teachers and students are required to always adapt to existing developments. Technology is the result of knowledge originating from the world of education therefore the world of education should utilize technology to increase efficiency in learning. Chemistry among students is still considered material that is difficult to understand. One of its attractions is the abstract nature of chemical material. Chemistry learning does not only include theoretical learning but also includes practical activities. This research was carried out to determine the effect of using a virtual laboratory on students' skills during direct practicum. The method used in this research is a quantitative method that uses a lot of numbers, starting from data collection, interpretation of the data and presentation of the results. A total of 52 students in class XI, Department of Mathematics and Natural Sciences at SMA Negeri 1 Sliyeg. Presenting the results in the form of a representative table will increase the reader's level of understanding and make it easier to access information. Virtual laboratories help students understand the practical process. Based on the results of data analysis obtained from filling out the questionnaire, it was found that 78.8% or the majority of students answered agreeing that the virtual laboratory had an effect on increasing pH testing. This proves that the use of virtual laboratories can be a way out so that when doing direct practicum students do not experience difficulties and the practicum runs more effectively.

Mathematics is a learning whose material is abstract. This causes students to find it difficult to understand mathematics, feeling that mathematics is difficult and boring. This condition occurred at Karitas Watuneso Vocational School. This Community Service aims to provide socialization and innovation in mathematics learning using trigonometry as a medium so that it is hoped that students will be more able to understand and be interested in learning mathematics. The results of the service with questionnaires that have been filled in by students show that the use of trigonometry teaching aids in their learning is 85% strongly agree and 15 percent agree, the method of delivering the material is 88% strongly agree and 12% agree, and students' understanding of the use of learning media is 80% strongly agree and 20% agree, while how to use it, 85% strongly agree and 15% agree. Thus, it can be concluded that students feel that the use of trigonometry teaching aids can facilitate students' understanding of trigonometry material and students are enthusiastic in this activity.