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The aim of this research is to describe what factors cause students' anxiety about learning Mathematics. This type of research is a descriptive qualitative approach. The subjects of this research were class X students majoring in Culinary and Office Management at Tunas Pembangunan Vocational School, South Jakarta. Research data was collected using questionnaires and interviews. The results of the research show that the anxiety of studying Mathematics experienced by class and anxious. Factors that cause moderate level anxiety are that learning Mathematics is too monotonous so that students quickly feel bored and causes students to feel afraid if their Mathematics grades do not match expectations. Meanwhile, the factors that cause low levels of anxiety are not feeling afraid when studying Mathematics and considering Mathematics as a fun subject so that students like Mathematics.

In the modern age, technological advancements are undeniably progressing at a rapid pace. Throughout its rapid progress, technology has had an impact on various aspects of life, and education is one of the fields affected by it. In the context of technological advancement, both teachers and students acquire important skills known as computational thinking. Computational thinking refers to the ability to systematically solve problems using logical reasoning and step-by-step decision-making for problem-solving. Computational thinking has a direct relationship with students' mathematical learning, especially in the process of tackling mathematical problems. The purpose of this research is to investigate the influence of computational thinking on mathematics learning, with a specific focus on algorithm analysis in programming. The research methodology involves a comprehensive analysis of related literature to delve into the research topic, using a literature review method. The results of this research indicate that computational thinking can be measured using specific indicators that play a crucial role in mathematics learning. Students' ability to apply computational thinking techniques to solve mathematical problems can be determined based on indicators such as decomposition, pattern recognition, abstraction, algorithmic thinking, and generalization.

In this increasingly sophisticated era, technology is also very often used in any situation. The use of various types of technology is growing so rapidly that learning activities in the field of technology have emerged which are usually called programming. Programming is also very interesting in the eyes of students because there are courses that are directly related to programming, namely Programming Algorithms. In programming, there are several types of languages ​​that are often used, for example the C and C++ programming languages. The C and C++ programming languages ​​are programming languages ​​that can simplify calculations in mathematics subjects, especially in the basic concepts of Arithmetic and Integers by using integer data types which contain numbers. So this literature concept study really makes it easier for programming users and readers to better understand the C and C++ programming languages ​​in calculating basic operations of Arithmetic Operators as well as calculations with simple codes on integers.

The importance of character education in learning is to improve the quality of implementation and educational outcomes in schools which leads to the achievement of student character formation. In this case, the teacher is not only tasked with delivering learning material, but is also tasked with instilling character values in students (Fatmawati, 2017: 8). This type of research is qualitative research and the method used is a descriptive method. Sugiyono (2017:9) qualitative research is a research method used to examine natural objects. The main aim of qualitative research is to understand social phenomena or symptoms by providing an explanation in the form of a clear description of the social phenomenon or symptom in the form of a series of words which will ultimately produce a theory, which is explained (Sujardewi, 2014: 110). Based on the description that has been presented, this research is defined as a research process that produces descriptive data in the form of written or spoken words from people and behavior that is observed and carried out naturally. This research uses a qualitative research method with the hope of being able to describe the analysis of character education in mathematics learning material on absolute values for students at SMA class X Harapan Bangsa Samalantan. absolutely at SMA Harapan Bangsa Samalantan class X. In chapter IV, the results of the research that has been carried out and the discussion are presented. Therefore, (1) Results, (2) Discussion are successively put forward.1. Analysis of character education in mathematics learning with absolute value material in class X has been carried out by the teacher through planning, implementation and evaluation carried out by the teacher. Mathematics teachers in planning mathematics learning material have absolute values for the character values listed in the RPP, namely the character values of discipline, honesty, responsibility and skills. In implementing learning, mathematics teachers also apply character education through methods, strategies and learning media. Analysis of character education in mathematics learning with absolute value material is based on lesson plans that have been created and adapted to learning conditions. The teacher's learning implementation uses the case study method, so that students always think critically in their efforts to solve problem formulation in mathematics learning with absolute value material. Assessment of the achievement of character education in mathematics learning absolute value material in class X using test questions and observation sheets of student behavior in learning.

The purpose of this research is to find out how the influence of the Team Assisted Individualization (TAI) type cooperative learning model on students' mathematics learning outcomes in class VII algebra form material at UPTD SMP Negeri12 Pematang Siantar. The approach taken in this study is a quantitative approach. The instruments used in this study were questionnaires (questionnaires) and learning outcome tests. Data analysis techniques use prerequisite tests, namely normality tests and linearity tests. To test whether Team Assisted Individualization (TAI) type cooperative learning models affect learning outcomes, a simple linear regression test was used. From the simple linear regression test performed, the regression equation Y = 8.804 + 0175.X which can be interpreted as every addition of 1% of the questionnaire value will cause an increase in learning outcome test scores of 0.175. It can be seen that the value of the regression coefficient is greater than 0 (positive value), so there is a positive influence between variable 50,8%.

The branch of mathematics that studies history is usually known as ethnomathematics, and the concept of ethnomathematics has made a major contribution to improving mathematics learning. It turns out that many cultures cannot be separated from mathematical calculations, including historical buildings that are simple but have many meanings and meanings. So this research was conducted to describe and identify mathematical concepts in Betawi Warehouses in the Setu Babakan Betawi Cultural Village. The research method used is a descriptive qualitative method with an ethnographic approach. The results of the research show that there is a mathematical concept in the Gudang Betawi house building in the Setu Babakan Betawi Cultural Village, namely the shape of the Gudang Betawi house which has a rectangular pattern from front to back, there are many philosophies in ornaments that have sizes and shapes, and there are geometric elements found in the building. Betawi Warehouse Houses are like whole numbers in measuring activities, equivalent comparisons in calculating the length of time to build a Warehouse House, there are corners in the building, there are flat geometric elements found in the length, area and perimeter of the building, there is also space geometry which has content and volume , there is a geometric transformation in the ornamental part of the Gudang Betawi house, and there is a congruence of flat shapes that can be seen on the door of the Gudang Betawi house.

Problem solving skills are important for students to overcome various problems related to learning and community life. This involves students actively exploring, observing, trying, and investigating using the knowledge and abilities they have. Problem solving is the main focus of developing students' higher order thinking skills in mathematics. This research was conducted by means of observation, interviews, and post-test methods on the 4th grade students of SD Negeri 7 Gondosari. In the results of the discussion, there are 10 data from 31 students which can describe a good level of problem solving. Some students experienced difficulties in implementing the problem and re-examining the results of the solution. Therefore, it is important for students to continue to hone their problem solving abilities using the Polya procedure and to re-check the correctness of the solutions that have been done.

The aim of this research is to develop learning media using  that are valid, practical, and effective to improve students' ability to understand flat Derivative topics. The study was carried out at SMA NEGERI 10 MEDAN. The subjects of this research were students of class XI IPA-1. This research is research and development (R&D) using the ADDIE Model. The data collection technique uses a questionnaire assessment sheet for material experts, teaching material experts, learning practitioners and student responses. The results showed that learning media using Android Studio obtained an average percentage of 91.8% with the criteria of "very valid" according to the assessment of teaching materials experts and based on media material experts obtained an average percentage of 86.5% with the criteria " very valid". Based on the practice of learning carried out by the mathematics teacher getting 91,8% with the "very practical" criteria. Based on the effectiveness assessment of the 35 students, they got an average percentage of 86.5% with the criteria of "very effective". Thus, based on the results of the assessment of material experts, teaching materials experts, learning practitioners, and student effectiveness it can be said that learning media using Android Studiohave been tested as valid, practical and effective for use in learning.

This research aims to determine the effect of the Knisley mathematics learning model on the understanding of mathematical concepts in class X SMA Negeri 2 Kabanjahe. This research was conducted using a sample of 2 classes, namely the Experiment class and the Control class. The form of test that is tested on students is an initial test (pretest), then the researcher provides treatment in the experimental teaching class using the Knisley Mathematics Learning Model and in the control class using the direct learning model, Then a posttest was given to both classes. The data obtained were analyzed using the t test. The results showed that the pretest average in the experimental and control classes was the same as tested using the average similarity test (two-way test) and met   namely so  accepted. For the posttest average equality test (right side test), it was concluded that the posttest average in the experimental class was greater than the control class because it met the requirements, namely 11.6111559 > 1.66907, so  was rejected and the conclusion was obtained that there was an influence Knisley's mathematics learning model for understanding mathematical concepts for class X.

This research aims to determine the validity, practicality, effectiveness and how the students' answers process in completing the conceptual understanding ability test of the developed Articulate Storyline. This type of research is ADDIE model development research. The subjects of this research were 15 students in class VIII-2. The research results showed that the validity of the media was 85% before revision and 98% after revision from material experts and 61.67% before revision and 98% after revision from media experts on very valid criteria. The practicality of the media has met practical criteria, based on teacher responses obtained at 100% and from student responses obtained at 92.36%. The effectiveness of the media has met the effective criteria in terms of classical student learning completeness reaching 86.67%, use of research time in accordance with the RPP, and student response of 91.67%. The N-Gain test result is 0.70 in the high category. For the student answer process on the ability test (pre-test) it was 38.89%, increasing to 46.67% on the final ability test (post-test). Increasing students' ability to understand mathematical concepts strengthens the development of Articulate Storyline mathematics learning media in the classroom learning process.

Mathematics is a scientific field that investigates formless structures and forms of interaction within them. Mathematical interaction is a powerful tool used to express mathematical opinions verbally or in writing. The Think-Talk-Write (TTW) learning approach is designed to facilitate the construction, reflection, and organization of new mathematical views. This study aims to explore the efficacy of using TTW learning examples as a tactic to enhance the quality of students' mathematical communication, and to assess the impact of this approach. In order to achieve these goals, researchers used classroom action research in two stages of testing. The study involved 21 students in grade VIII at SMP Parulian 1 Medan. The initial ability test revealed that the students' mathematical communication ability scores were 34.2%. After conducting test activities in cycle I, the average mathematical communication ability of students rose to 36.8%. In the second cycle (II), the percentage result increased to 88%. The results of the research demonstrate that students in Class VIII at SMP Parulian 1 Medan experience a significant improvement in their mathematical communication skills through learning via the Think-Talk-Write model. We can conclude that this approach is an effective way to enhance students' mathematical communication skills.    

This research is a quasi-experimental research. The research conducted at SMP Negeri 1 Labuhan Deli aims to find out. 1) To find out how the mathematical communication ability of students who learn to use Macromedia Flash. 2) To find out how the mathematical communication ability of students who learn without using Macromedia Flash. 3) To find out whether the mathematical communication of students who learn using Macromedia Flash media is better than the mathematical communication of students who learn without using Macromedia Flash media for class VII students at SMP Negeri 1 Labuhan Deli T.A. 2021/2022. The population in this study were all students of class VII at SMP Negeri 1 Labuhan Deli. Using a homogeneous technique, samples were taken from 2 classes of population. One class was used as the experimental class, namely class VII-2 which was taught with Macromedia Flash and class VII-3 which was used as the control class, namely class which was taught without using Macromedia Flash. As a data collection tool using PreTest and PostTest. In this study 1) the mathematical communication ability of students learning to use Macromedia Flash with an average pretest of 67.77 and a posttest of 85.54. 2) the mathematical communication ability of students who learn without using Macromedia Flash with an average pretest of 67.13 and a posttest of 77.54. then testing the hypothesis for learning outcomes using paired t-test. after testing the data, it turns out that the results of testing the ability of learning outcomes in the experimental class at the pretest level α = 0.05 with Lcount < Ltable, namely 0.09452 <0.192 and posttest 0.1228 <0.192 , and the results of testing the ability of learning outcomes in the control class at the pretest level α = 0.05 with Lcount < Ltable, namely 0.1014 < 0.184 and posttest 0.1659 < 0.184, then H0 is accepted and Hi is rejected. Thus it can be concluded that the mathematical communication ability of students who use macromedia flash media are better than those without using macromedia flash media.

This research aims to: (1) improve students' mathematical reasoning abilities by applying the problem based learning model assisted by the Geogebra application in mathematics learning for class VIII students at SMP Negeri 3 Sunggal; (2) describe the process of completing student answers related to students' mathematical reasoning by applying the problem based learning model assisted by the Geogebra application. This research is Class Action Research. The subjects in this research were 28 students in class VIII of SMP Negeri 3 Sunggal. The results of the research show that: (1) students' mathematical reasoning can improve after learning by applying the problem based learning model assisted by the Geogebra application where the average student score in the cycle I reasoning ability test was 65.85, increasing to 85.39 in cycle II and classical completeness in the reasoning ability test in cycle I was 16 students (57.14%) increasing to 26 students (87.88%) in cycle II; (2) the process of students' answers in completing the mathematical reasoning ability test is in the good category, this can be seen from the students' answers which have been able to meet the indicators of mathematical reasoning ability. So it is concluded that the application of the Problem Based Learning learning model assisted by the Geogebra application can improve students' mathematical reasoning abilities.

This study aims to determine the learning obstacles associated with the triangle material and the factors that cause it. The participants in this study were class VIII students of SMPN 1 Sengah Temila and mathematics teachers. This study uses a qualitative method. Data collection techniques in this research used observation, measurement techniques (tests), interviews, and documentary studies. The data was analyzed qualitatively to determine students' learning obstacles in class VIII triangle material at SMPN 1 Sengah Temila. The results of this study are that students experience ontogenic barriers, namely obstacles related to one's mental readiness, epistemological, namely students' knowledge that has a limited context, and didactical obstacles related to teaching materials, or learning offerings used by the teacher. The obstacles experienced by students are learning obstacles to types of triangles, determining triangle images and triangle concepts.

In this study, problems can be found with low activity and student learning outcomes because students still do not understand learning and do not participate in learning. As for the solution to overcome these problems, researchers used a combination of PBL, TPS and CRH models. With the aim of this research to know the activities of students and teachers and improve student learning outcomes. This study uses a type of Classroom Action Research (CAR) with a qualitative approach, in this study conducted for 4 meetings. The research subjects were fifth grade students who were at Sungai Miai 8 Elementary School Banjarmasin with 18 students. The results of this study showed that there was an increase in teacher activity from meeting I reaching a score of 64 in the "Good" category and at meeting IV reaching a score of 97 with the "Very Good" category. Student activity at meeting I reached a score of 57 with the category "Quite Active" there was an increase in meeting IV reaching a score of 84 with the category "Very Active". Likewise, the learning outcomes in both the cognitive domain increased to 94%, while the affective and psychomotor domains increased to 100%.

This research was conducted to find out the impact of mathematics learning on the cognitive abilities and life skills of elementary school students. This research uses a questionnaire to find out how they have learned mathematics. This research uses a qualitative approach by utilizing a questionnaire as an instrument. The distribution contained 15 questionnaire statements given to 18 class VI students. The results of the analysis show that most mathematics learning has a positive impact on students' cognitive and life skills. Through mathematics lessons, students can hone their ability to think critically, systematically, so that they can solve problems from the questions they are given and problems found in everyday life. Although there are still many who do not feel the benefits of mathematics itself.

This research shows that the use of diverse learning resources in mathematics teaching improves student understanding. Textbooks, visual materials, math apps and math manipulatives help students with different learning styles. Internet-based and diverse learning resources also increase students' interest in mathematics and relate it to everyday life. The literature review method was used to reorganize, analyze, and synthesize existing literature rather than to collect primary data through experiments or surveys. These results emphasize the importance of mathematics teaching approaches that utilize diverse and intelligent learning resources. Teachers need to keep abreast of educational innovations and technologies to ensure effective and relevant mathematics education for students. This research provides a solid foundation for the improvement of mathematics teaching in schools and better understanding by students.

Technology has changed the educational landscape by providing greater access to learning resources, creating interactive and engaging learning environments, and supporting the use of virtual simulations and experiments. Customisation of learning and the ability to track student progress through technology is an important focus in the effort to improve student learning motivation in Mathematics and Natural Sciences Education. This research uses qualitative research methods with literature study data collection techniques to investigate the impact of using learning technology on student learning motivation in Mathematics and Natural Sciences Education. The purpose of this research is to provide a deeper understanding of how learning technology can be optimised to improve student learning motivation in Mathematics and Natural Sciences. The results of this study have the potential to provide relevant recommendations that can help improve Mathematics and Natural Sciences education in the current digital era. This research is expected to make a significant contribution to the understanding of how learning technology can be used more effectively in increasing student learning motivation in Mathematics and Natural Sciences, so that it can provide maximum benefits in preparing students to face global challenges in the future.

The aim of this research is to determine the results of cooperative learning strategies through experiments in learning to count for slow learner children. We combined quantitative and qualitative methods in analyzing the data collected during the research. The profile of a Slow Learner student concluded through assessments is used as the basis for creating a Learning Program Plan that uses cooperative learning strategies through experimentation. The research results show that cooperative learning increases the motivation and active learning of regular and special students while improving the learning outcomes of children with special needs, and all students in general. This can be seen from the scores obtained by both groups which were above average and the attitudes shown in learning. We hope that the results of this research can provide information about creative ways of cooperative mathematics learning for Slow Learner students in an inclusive context.

Based on the analysis of student needs and interviews with teachers, it shows that mathematics learning, especially in fraction material, has not used innovative media and the minimal use of technology-based learning media has caused students to feel bored and less interested. The purpose of this study was to determine the feasibility and readability of KOCAH Multimedia products for learning Mathematics for fraction material. This type of development research is RnD which has been developed by Sugiono with 7 stages. This study used a questionnaire sheet instrument and interview and observation techniques. Based on the results of the validation test by 9 validators, it is known that KOCAH multimedia can conclude the feasibility of the media by obtaining results from material experts of 87.28%, 91.11%, from media experts and 88.33% from linguists. The results of the student readability questionnaire on KOCAH Multimedia obtained a percentage of 96.15% and the results from the teacher readability questionnaire obtained a percentage of 93.41%.