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This research aims to analyze the critical thinking skills in mathematics of class X students. The research method used is survey research using tests of critical thinking skills in mathematics. Data was collected from class X students through a test specifically designed to measure their critical thinking skills in a mathematical context. Analysis was carried out to evaluate the level of students' critical thinking skills and the factors that influence them. The results showed that there was variation in students' critical thinking skills, with several factors such as educational background and level of motivation playing a role in influencing these skills.

This study aims to analyze communication patterns in mathematics learning for blind students. This research was conducted by utilizing observation techniques on interactions between blind students and teachers in the context of mathematics learning. Data was collected through direct observation and analyzed qualitatively to identify dominant communication patterns. The research results show that communication patterns in mathematics learning for blind students have their own characteristics, which include the use of various verbal and non-verbal methods. This study provides valuable insights for the development of more inclusive learning strategies for students with visual impairments in the context of mathematics education.

Computer technology is very important for the world of education, namely as a tool that can be used to improve the implementation of educational programs in the learning process and in improving student learning outcomes. To make mathematical material more specific, user-friendly Geogebra software is provided. The software was developed by Hohenwarter and aims to make learning easier for students. Therefore, educators need to be trained more deeply in the use of technology, in this case how to use the GeoGebra software. Learning media is needed to improve students' low understanding of mathematical concepts in Indonesia. Media that are considered effective include the GeoGebra application. The GeoGebra application is dynamic mathematics software for all levels of education that brings together geometry, algebra, spreadsheets, graphics, statistics and calculus in one engine.If students' interest in participating in class learning is very low, conditions that are allowed to continue can of course result in students' low understanding of concepts which will later affect student learning outcomes, therefore the GeoGebra application has a big influence on understanding concepts to facilitate the learning of mathematics that will be studied. . One example of the use of the GeoGebra program in learning mathematics is that it can produce geometric drawings quickly and accurately compared to using a pencil, ruler or compass. This socialization activity took place in the IT Bina Bangsa Middle School Hall involving 39 students from VII. This activity was attended by the Principal and the Teacher Council with resource person Mrs. Desty Endrawati Subroto M. Pd. Based on the results obtained, it can be concluded that using the GeoGebra application on quadrilateral congruence material can improve the conceptual understanding ability of class VIII SMP IT Bina Bangsa students.

The concept of algebra is very important in learning mathematics, students' ability to understand advanced mathematics lessons depends on mastery of algebraic concepts. Therefore, it is necessary to analyze the errors that often arise when students solve algebra problems. The purpose of this study is to analyze the errors of vocational students in class XI in solving algebra problems. This research uses a qualitative method that is analyzed descriptively. The research subjects were 28 students of class XI with the object of research, which is the errors that arise when students solve algebra problems. The results showed that based on Kastolan's Theory, procedural errors occur most often, followed by technical errors, and concepts.

In Indonesia, the main focus of current education reform efforts is the Merdeka Curriculum. Mathematics is one of the subjects that has undergone many changes, especially at the elementary school (SD) level. This study investigates the impact and challenges that arise when implementing Merdeka Curriculum in mathematics learning at the primary level. The purpose of this study is to provide insights and details regarding the challenges associated with learning mathematics. This research uses a qualitative descriptive methodology that combines two methods to explore information at SDN 012 Babakan Ciparay, Bandung City, which leads to the implementation of the Merdeka Curriculum. The research results obtained in this study found that there were difficulties in implementing the Merdeka Curriculum in students as well as teaching staff, especially in the application of mathematics learning. However, this does not significantly affect the effectiveness of learning and the interest of students and teaching staff.

This study aims to determine whether the NHT type cooperative learning model with the help of LKPD can improve student learning outcomes in grade X of SMA Negeri 1 Stabat. This type of research is Classroom Action Research (PTK) or action research which consists of 2 cycles, where each cycle consists of 1 meeting. The subjects in this study were students of grade X Science 1 SMA Negeri 1 Stabat consisting of 36 students. The object of this study is the results of student learning with the application of the Numbered Head Together type cooperative learning model with the help of Student Worksheets in grade X Science 1 SMA Negeri 1 Stabat. From the results of the study can be concluded the following: (1) There is an increase in students' mathematics learning outcomes. This can be seen by the achievement of classical completeness in the initial test obtained 30.56%, in the learning outcome test I increased to 61.11%, and in the learning outcome test II increased to 86.11%, so that based on the results of the data analysis it was obtained that this study had reached the specified success indicators. (2) After the implementation of the Numbered Head Together learning model with the help of Student Worksheets, students' mathematics learning outcomes have been classically completed to 86.11%.

Blended learning is a new learning strategy that provides many benefits for students, as well as a form of information and communication technology support towards new learning modes. This research aims to find out: 1) The pros and cons of blended learning lectures in the UNU Pasuruan mathematics education study program in 2023. 2) supporting and inhibiting factors for the blended learning lecture process. This type of research is qualitative with a descriptive approach. The number of samples in this study was 6. The data collection technique was to include the results of interviews that had been conducted accompanied by documentation of their implementation.

The ability to use image applications with accuracy, fluency and good and correct understanding is a challenge for students in forming new knowledge. There are still many students who do not master the skills of taking pictures of their surroundings in the Arloopa Application. Therefore, this research aims to evaluate the application of image media techniques to the skill of taking pictures of surrounding objects. This research is descriptive qualitative research. This research was carried out in three cycles, each consisting of two face-to-face learning cycles. The data analysis techniques used were descriptive qualitative and quantitative analysis. The results of the research show that students in cycles I, II and III have average scores which indicate that the application of image media techniques can improve their ability to use image media applications. It was concluded that the application of effective image media can increase the ability to take pictures of surrounding objects so that they become spatial shapes. Image media can facilitate students in learning English Mathematics.

This study aims to determine the levels of NaCl, to compare with the Indonesian National Standard and to see the influence of the environment and the cooking process on traditional salt produced by salt farmers in Kampung Garam, Sikka Regency. This research was conducted in Kampung Garam, Sikka Regency and the Mathematics and Natural Sciences Laboratory of the Muhamadiyah Maumere. The sample of this research is 3. The sampling technique used is purposive sampling. This study uses a qualitative exploratory method. After the data is collected, it is followed by data analysis, namely by data reduction, data presentation, triangulation and drawing conclusions. Based on the research results, the NaCl content in sample A was 90.38%, salt samples B and C were 85.71% and 79.37%. The process of making salt in Uneng City includes several stages: 1) preparation of raw salt raw materials; 2). coarse salt is transferred in a filter container poured with water; 3) this coarse salt drained water is collected in a bucket; 4) salt water is cooked in a container that has been prepared at 90°C; 5) after a few hours, salt crystals form; 6) and salt drying is done by filtering. Therefore, the results of the study concluded that the quality of salt was seen from the NaCl content produced from three locations in Salt Village, Sikka Regency using the evaporation method with the help of fuel heat according to (SNI 4435-2017) on the basis of dry weight (adbk) for sample A including quality K2 salt (medium quality), samples B and C belong to K3 salt quality (low quality) and there are environmental influences and the salt cooking process on production so that it is not suitable for consumption.

This study explores the effect of inquiry-based learning (IBL) on mathematics achievement among secondary school students. Utilizing a quasi-experimental design, two groups of students were taught the same mathematical content, one group using traditional methods and the other with an IBL approach. Results indicated that students exposed to IBL exhibited significantly higher comprehension and engagement levels, particularly in problem-solving and critical thinking skills. These findings suggest that IBL is a promising pedagogical approach for enhancing mathematics achievement in secondary education.

This research addresses mathematics anxiety among high school students, examining its causes, impacts on academic performance, and students' coping mechanisms. Through a mixed-method approach combining surveys and interviews, the study identifies key factors contributing to math anxiety, including social influences, teaching styles, and individual differences. Findings suggest that mathematics anxiety has a substantial negative effect on academic achievement, but that certain coping strategies, such as peer collaboration and guided practice, can mitigate this impact.

This paper investigates the integration of Science, Technology, Engineering, and Mathematics (STEM) with Environmental Education (EE) and its impact on students' environmental attitudes and knowledge. The study involved 300 students who participated in a curriculum that merged STEM concepts with environmental issues. Findings showed improved environmental awareness and a more positive attitude toward conservation practices among students. The study highlights the importance of interdisciplinary approaches in fostering both scientific literacy and environmental responsibility.

Placing appropriate Field Work Practices (PKL) for students is very important, because it can maximize the abilities and talents of each student so as to produce graduates who are ready to compete in the world of work. In choosing a place for PKL students at SMK Negeri 4 Malang, the problem that often occurs is a mismatch in students' needs for a PKL place. To overcome this problem, a computer system is needed in the form of a decision support system that can help students at SMK Negeri 4 Malang to choose the right PKL place for students. The decision support system developed in this research uses the Moora and Simple Additive Weighting (SAW) methods in deciding the placement of PKL students. Based on the final results of the decision support system in the form of ranking. Moora's advantages include being stable and strong, this method does not even require an expert in mathematics to use it and requires simple mathematical calculations. Moora also has a good level of selectivity because it can determine goals from conflicting criteria. Where the criteria can be profitable (benefit) or unprofitable (cost). The SAW method was chosen because this method determines the weight value for each attribute, then continues with a ranking process which will select the best alternative. Research is carried out by looking for weight values for each criterion, and then creating a ranking process that will determine the optimal alternative.

This research aims to describe the application of the Student Team Achievement Division (STAD) learning model in improving the learning outcomes of class XI-4 students at SMA Negeri 6 Surabaya, especially on the subject of vectors. The background to this research is strengthened by the fact that motivation to learn mathematics tends to be low, especially when studying complex material such as vectors. This is supported by initial observations which show that students often have difficulty understanding these concepts, which is reflected in the low learning outcomes, with a percentage of only 73%, and classical completeness of only 40%. This research is classroom action research carried out in two cycles. The research subjects consisted of 36 students. Data is collected through tests and observations. Data analysis was carried out using qualitative and quantitative descriptive techniques. The results in cycle 1 showed a significant improvement, with learning outcomes reaching 97% and classical completion increasing to 94%. In cycle 2, learning outcomes reached 98% and classical completion reached 100%. Thus, it can be concluded that the application of the STAD learning model is effective in improving the learning outcomes of class XI-4 students at SMA Negeri 6 Surabaya.        

Instructional media plays a crucial role in achieving educational objectives. Educators need to develop teaching strategies using various appropriate media and learning resources. Currently, GASING mathematics instructional media only consists of modules, PowerPoint, and teaching aids. This indicates the untapped potential in utilizing instructional media such as animated videos as engaging and effective learning tools. Based on this issue, the researcher employed the GASING method in the subject of mathematics, specifically focusing on multiplying 2-digit numbers by 1-digit numbers. This study aims to ascertain the development process and feasibility of animated videos using Powtoon. These animated videos were developed using the ADDIE model. Based on validation results by language experts, an average of 98.33% was obtained, while content experts yielded an average percentage of 78.18%. Furthermore, media experts achieved an average percentage of 90.67%, and individual trials (One to One) resulted in an average percentage of 85.64%. Based on the validation results by experts, it can be concluded that animated video instructional media using Powtoon in mathematics with the GASING method as the developed instructional media is highly suitable for field use, as evidenced by the average percentage of feasibility obtained being 88.21% (very feasible).  

Numeracy markets are activities that imitate market situations that are closely related to everyday life. Students are given the opportunity to design, manufacture, market, and sell goods. This research aims to help students improve their numeracy skills, increase their understanding of basic mathematical concepts, and improve their social skills and creativity through numeracy market activities. This type of research is descriptive with a qualitative approach. The research subjects consisted of fifth grade students at UPTD satdik SDN Curahtakir 4. The stages in this research included observing placement schools and their problems, designing activities as solutions to problem solving, carrying out AKM pretests, carrying out numeracy market activities, carrying out AKM posttests, and then analyzing and evaluating . The research results show that it is very suitable for elementary school (SD) students because it offers new experiences in interpreting mathematical concepts. This numeracy market activity also has a positive impact on improving student learning outcomes in the context of mathematics. Apart from that, the findings from this research are that the AKM numeracy post-test scores for class V students have increased compared to the previous AKM numeracy pre-test scores.

Student learning outcomes in learning fractions in elementary school are still low, to overcome this problem an effective model is needed. This research aims to describe the improvement in learning outcomes for multiplication and division of fractions using the PBL model in class V of SD Negeri 057761 Kwala Gebang. The research was carried out in two cycles, namely cycle I and cycle II. Each cycle consists of four stages, namely planning, implementation, observation and reflection. The subjects of this research were 7 class V students at SD Negeri 057761 Kwala Gebang. Research results: RPP observations in cycle I averaged 83.33%, increasing to 97.22% in cycle II. In the observation results from the teacher aspect of cycle I, the average was 73.21%, increasing to 96.42% in cycle II. In the observation results from the student aspect of cycle I, the average was 64.28%, increasing to 92.85% in cycle II. Meanwhile, the learning outcomes of students in cycle I obtained 54.54% completeness, increasing to 95.45% completeness in cycle II. It can be concluded that the PBL model can improve student learning outcomes in learning multiplication and division of fractions in class V of SD Negeri 057761 Kwala Gebang.

Education serves as a crucial foundation for fostering collaborative skills among students, particularly in subjects requiring in-depth understanding such as mathematics. This research aims to investigate the impact of implementing the Jigsaw Learning Model in enhancing the level of collaboration among students in the context of mathematics learning. The Jigsaw Learning Model, introduced by Aronson and Patnoe (2011), emphasizes collaboration and active involvement of students. This method involves collaborative learning where each student is responsible for a portion of the learning material and must collaborate with their peers to comprehend the entire concept. This study explores the effectiveness of this model in improving collaboration among students in mathematics learning. Through an experimental research design, data is collected through classroom observations, interviews, and document. Data analysis is conducted to measure changes in the level of student participation, understanding of mathematical concepts, and their perceptions of collaborative learning. The results of this research are expected to provide valuable insights for educational practitioners and researchers regarding the potential of the Jigsaw Learning Model in enhancing student collaboration in the context of mathematics learning.

This study assesses the effectiveness of peer tutoring programs in enhancing students' performance in STEM subjects (Science, Technology, Engineering, and Mathematics). A longitudinal analysis of a peer tutoring initiative in a high school setting revealed significant improvements in both the academic performance of tutees and the tutoring skills of peer tutors. The research highlights the mutual benefits of peer tutoring, with tutees gaining better understanding of STEM concepts and tutors reinforcing their own knowledge. The findings suggest that peer tutoring is a valuable pedagogical tool in STEM education.

This study was motivated by the low mathematics learning outcomes and cooperation skills of fourth grade students of SD Negeri Koroulon 1, so the purpose of this study was to improve mathematics learning outcomes and cooperation attitudes of students by using the Problem Based Learning model. The type of research used is Classroom Action Research (PTK) which is carried out in two cycles. the subject of this research is grade IV students. The instruments in this study used test and non-test instruments. Evaluation tests were used to collect data on student learning outcomes, while observation sheet instruments were used to collect data on student cooperation. the results of this study indicate an increase in learning outcomes as seen from the percentage of completeness from 42.1% to 84.2% at the end of cycle II. The increase also occurred in the average value of student cooperation from 51.2 to 74.89 at the end of cycle II. Based on these results, it can be concluded that the Problem Based Learning model can improve students' math learning outcomes and cooperation.