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According to (Aufa, 2016: 232) Mathematics is one of the subjects taught at every level of education, from early childhood education to higher education. Mathematics is also a science that underlies the development of science and technology, so that mathematics is seen as a structured and integrated science, the study of patterns and relationships, and the science of thinking to understand the world around us. From the explanation of Ansari and Aufa, it can be concluded that mathematics is one of the subjects taught in every education which is useful for helping to clarify and simplify abstract situations through language and mathematical ideas so that it makes it easier to understand problem solving that exists in everyday life.

This study aims to determine the achievement of students‘ critical thinking skills in solving HOTS-based Mathematics problems in terms of students’ learning styles at SD Negeri Gembira, Nangahale Village. This type of descriptive qualitative research aims to present in-depth information about a subject. The research was conducted at SD Negeri Gembira Desa Nangahale in even semester on 10 April-17 May 2023. Primary data sources were obtained from observation. While secondary data sources were obtained from tests, questionnaires, and interviews. Data collection techniques using tests, learning style questionnaires and interviews. Data analysis in this study used miles and huberman model data analysis, namely data presentation, data reduction and conclusion drawing. The results showed that subjects with visual learning styles revealed that the thinking process on each indicator of critical thinking ability smoothly so that the subject could solve the problem correctly. Subjects with auditory learning styles reveal well the critical thinking process on each indicator of critical thinking ability.

This study examines the integration of Islamic Religious Education and Mathematics within a digital learning environment and its potential role in shaping students' character in the context of Society 5.0. The study employs the Systematic Literature Review (SLR) method to analyze existing studies on the integration of these two subjects through digital learning platforms. The results of the literature review reveal various models of integration, highlighting the role of technology in facilitating the merging of religious education with mathematical thinking. Additionally, this study evaluates the impact of this integration on the development of students' moral and ethical values, as well as the enhancement of their critical, logical, and creative thinking skills. The findings suggest that the integration of Islamic Religious Education and Mathematics not only improves academic learning but also plays a crucial role in character building, fostering values such as responsibility, honesty, and respect. Despite its great potential, this integration faces challenges such as limited technological infrastructure and teacher readiness. This research provides insights into the practical implications of this integration in educational practice in the digital era.  

This study aims to (1) describe the characteristics of e-LKPD based on realistic mathematics education on system of linear equations with three variables oriented towards critical thinking skills and self-efficacy of vocational school students, (2) describe the feasibility of e-LKPD based on realistic mathematics education on system of linear equations with three variables oriented towards critical thinking skills and self-efficacy of vocational school students in terms of validity,  practicality and effectiveness. This type of research is research and development (Research and Development) with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The research subjects were 34 students of class X TKP SMKN 2 Tarakan. In this research, One Group Pretest - Posttest Design was used. The research instruments used were validation sheets, practicality assessment sheets by teachers and students, learning implementation observation sheets, critical thinking ability tests and self-efficacy questionnaires. The results of the research show: (1) the e-LKPD developed contains characteristics found in the RME approach to the material of on system of linear equations with three variables oriented towards critical thinking skills and self-efficacy. The characteristics contained in RME-based e-LKPD include integrated learning, use of context, mathematization and construction processes and interactivity. (2) the RME-based e-LKPD developed meets the criteria for feasibility in terms of validity aspects with a percentage of feasibility according to material experts of 93.4% and media experts of 98.9% with the validation result criteria being very feasible; practicality with a very practical category based on the results of student and teacher responses; effectiveness based on critical thinking skills with classical completeness of students reaching 82.4%, the results of the T-test paired samples-test with a significance level of 5% obtained that there was an influence on students' critical thinking skills after treatment using RME-based e-LKPD, the N-Gain result was 0.73 with a high category, and the effectiveness of e-LKPD on self-efficacy with an increase in each self-efficacy indicator,  the N-Gain result was 0.3 in the moderate category, and the results of the Wilcoxon test on self-efficacy data with a significance level of 5%, it was obtained that there was an influence on students' self-efficacy after treatment using RME-based e-LKPD.

This study aims to improve the mathematical subtraction calculation ability of class I-A students of SDN 104202 Bandar Setia through the puzzle playing method. The problem in this study is low mathematics learning outcomes. The method used in the study is Classroom Action Research (CAR) as many as 2 cycles. The subjects of this study were class 1-A students at elementary school SDN 104202 Bandar Setia Jl. Terusan Dusun V Bandar Khalipah, Percut Sei Tuan District, Deli Serdang Regency, 2024/2025 Academic Year, totaling 27 students consisting of 10 female students and 17 male students. Classroom Action Research (CAR) improves students' subtraction calculation ability by using the mathematical puzzle playing method of class 1 SDN 104202 Bandar Setia, it can be concluded as follows: "The application of the mathematical puzzle playing method in class 1-A SDN 104202 Bandar Setia which is proven by an increase in research results in each cycle. Assessment of achievement in mathematics learning subtraction in cycle I with an average of 69.25, percentage of completion 69%, and in cycle II began to show an increase with an average value of 90.74 percentage of completion 90%. The results also show that this classroom action research achieved the specified completion indicator, namely completion above 90% .

Education is a key factor in human resource development, especially in rural areas that often face challenges in accessing quality education. The Afternoon Tutoring Program (Bimbel Sore) conducted by KKN-MAS students from Universitas Muhammadiyah Prof. Dr. HAMKA in Sidorejo Village aims to enhance elementary school students' academic understanding and learning motivation. This program was attended by 30 students and focused on core subjects such as Mathematics, Indonesian Language, and Natural Sciences using an interactive approach, including group discussions, quizzes, and Q&A sessions. Evaluation results showed an increase in students' comprehension, with an average score improvement of 25%, as well as greater active participation in learning. Furthermore, the program contributed to boosting students' confidence in facing academic challenges. This initiative is expected to serve as a model for improving education quality in rural areas and inspire other community service activities. The sustainability of this program can be strengthened by involving more volunteers and expanding the range of taught materials to better align with students' needs in the future.

The mathematics learning process at high school level often faces challenges in terms of difficulties in understanding concepts. Conventional learning media is not interesting and interactive enough so it is less effective in understanding the material. This research aims to produce learning media using PowerPoint on the subject of statistics for class X. The development model used is the R&D model with the ADDIE development pattern, which consists of five stages: analysis, design, development, implementation and evaluation. The data collection technique used was a questionnaire. Data collection instrument that will obtain quantitative and qualitative data. Qualitative data was obtained from suggestions and input, while quantitative data was obtained from questionnaire calculations. The data analysis technique used is validation data analysis and learning media practicality data. The results of research validation analysis by three validators, namely media experts, material experts and learning experts using a Likert scale, show that the average validation of learning media is in the very feasible category. Apart from that, the results of the analysis of student response questionnaires, which involved thirty-two students, showed that the learning media obtained an average that fell into the very practical category. The conclusion of this research is that the interactive PowerPoint learning media on the subject of statistics, the material focusing on single data, has been tested and proven to be very feasible and very practical.”

The purpose of this study is (1) to describe the characteristics of a good mobile learning application to improve computational thinking and learning independence of high school students. (2) to produce a mobile learning application that is oriented towards computational thinking skills and student learning independence with good quality. The quality of the development results is determined based on Nieveen's criteria, namely valid, practical, and effective. This study is a research and development (R&D) that uses the Borg & Gall development model with 8 development steps, namely preliminary study, planning, initial product development, small group trials, main product revision, limited scale trials, operational product revisions and large-scale trials. The subjects in this study were 36 students from one class at SMA Negeri 1 Gamping, Sleman Regency. The instrument used to measure the validity of the mobile learning application is the expert validation sheet. The instrument to measure the practicality of the mobile learning application is the student response questionnaire. The instrument to measure the effectiveness of the application is the computational thinking test and the student learning independence questionnaire. Validity and practicality data analysis was conducted by converting quantitative data into qualitative form in the form of four standard scale values, while effectiveness data analysis based on test and questionnaire results was conducted using paired sample t-test. The results of the study showed that (1) Mobile learning applications have the characteristics of being easy to apply, flexible to time, lightweight and easy to carry anywhere and also implementing each computational thinking indicator in each stage of the material. (2) The results of expert validation showed that the developed mobile learning application met the valid criteria as seen by the Aiken's validity test score for media experts of 0.83 and 0.68 for material experts. The practicality of the mobile learning application is included in the very good category as seen from the average results with an average percentage of student responses of 87.17%. The effectiveness of the computational thinking test obtained a t-value of 47.22 greater than t (35,0.05) with a score of 1.69, the effectiveness of the learning independence test based on the t test obtained a t-value of 4.85 greater than t (35,0.05) with a score of 1.69. Based on the results obtained, it can be concluded that the developed mobile learning application meets the criteria of validity, practicality and effectiveness.

This service aims to explain the increase in mathematics learning outcomes when implementing the MEA method in class X at MA Darussalam Manuju. The data collection technique uses data about students' mathematics learning completeness obtained from the results of mathematics learning tests carried out at the end of each cycle, with 27 class X students as the subject. The instrument is a learning results test sheet. The results show that the application of the MEA method can improve students' mathematics learning outcomes. This can be proven based on the average score of student learning outcomes in cycle I reaching an average of 69.3703 and in cycle II reaching an average of 87. Based on the learning outcome completeness category used, the score for students' mathematics learning outcomes categorized as complete in cycle I was 81.48% and in cycle II it increased to 100%. These results can be concluded that there has been an increase in Mathematics Learning outcomes using the Means Ends Analysis Method.

This research aims to determine the application of the jigsaw type cooperative learning model to fifth grade students at Hasanuddin Elementary School, Medan Helvetia, in the mathematics subject of integers. This type of research uses PTK (Classroom Action Research). The subjects in this research were all 30 fifth grade students at Hasanuddin Elementary School, consisting of 13 men and 17 women. Meanwhile, the object of this researcher is to improve student learning outcomes in mathematics subjects covering integers. We can observe data on the comprehension abilities of class V students in classes using the Jigsaw model in table 1, then the data is analyzed using the SPSS version 25.0 application. The results of data analysis show that the learning outcomes in class V using the Jigsaw model obtained a class average score of 83.30. The average value of students' mathematical understanding was classified as good, followed by the highest score obtained by class V students at Hasanudin Elementary School was 100. 00 and the lowest value is 63.00. Based on data processing on the mathematical understanding ability of fifth grade students at Hasanuddin Elementary School using the Jigsaw model, it is known that 3 students got scores in the range of 56-70 (medium category) or 10.0% of the entire sample, 14 students got scores in the range. 71-85 (good category) or 46.7% of the entire sample, and 13 students got scores in the range of 86-100 (very good category) or 43.3% of the entire sample.

Numeracy is not only the responsibility of mathematics teachers, but also the responsibility of all non-mathematics teachers, namely teachers who teach subjects other than mathematics. The approach needed is cross-subject numeracy. Based on the results of interviews with partner schools, it was obtained that teachers in these schools still have minimal knowledge about numeracy literacy and numeracy reinforcement in non-mathematics lessons. The solution offered is to provide reinforcement of numeracy literacy materials and provide reinforcement of non-mathematics or cross-subject numeracy literacy materials so that non-mathematics teachers can also improve students' numeracy in subjects other than mathematics. The implementation mechanism consists of 3 main stages, namely the planning stage, the implementation stage, and the evaluation stage. Evaluation of program implementation is measured from the increase in participants' knowledge from pretest to posttest and the participant's response questionnaire to this activity. Based on the results of the community service, it can be concluded that this activity makes a good contribution to increasing the knowledge and understanding of SMP Terpadu Darul Dakwah teachers regarding cross-subject numeracy literacy and examples of learning activities to strengthen numeracy literacy in subjects other than mathematics. The number of participants who experienced an increase in score from pretest to posttest was 100%, meaning that all participants in the activity experienced an increase in knowledge. In addition, it can also be seen from the average pretest of 48 and the average posttest of 75.5. The overall process of implementing this activity went well and smoothly. This activity also received a positive response from the participants with a score percentage of 90.25%.

Mathematics anxiety can reduce students' ability to understand and solve mathematical problems, thus affecting their overall attitude towards mathematics. Mathematics anxiety, a psychological factor that can affect students' learning achievement in mathematics learning in high school, makes it the most challenging subject in school. This study aimed to identify the effect of mathematics anxiety on students' learning achievement at the high school level and to analyze strategic factors that can help reduce mathematics anxiety for students. This study used a quantitative method with an ex post facto research type with a correlational design. The population was grade X high school students in South Tangerang, with a sample size of 84. The side technique used cluster random sampling. Data collection used an instrument in the form of a mathematics anxiety and learning achievement questionnaire. Data analysis was carried out through partial correlation and multiple correlation with a significance level of 0.05, and the prerequisite test analysis used normality, linearity, and multicollinearity tests. The results showed that mathematics anxiety influenced by self-efficacy factors, classroom climate, and academic support from parents and peers significantly affected students' learning achievement in high school. Schools can facilitate a more conducive learning environment to minimize mathematics anxiety and improve learning outcomes. Implementing a learning program that is psychologically responsive and adaptive to students' needs is expected to improve students' mathematics achievement significantly..  

This study aims to analyse the interaction between ethno STEM based thematic learning and conventional learning with early mathematical abilities in improving students' numerical literacy. This study used a quasi-experimental method with a non-equivalent control group design. Data collection was carried out through a numerical literacy test. Methods of data analysis using two-way variance analysis using a general linear model univariate analysis. The research subjects were fifth grade elementary school students in Tuban Regency, East Java Province. The sampling technique used a purposive sampling technique, taking into account the homogeneity of students' early mathematical abilities in both classes. Homogeneity is determined by giving pre-tests to students. The research sample consisted of 48 students, which were divided into two classes. The results showed that there was no interaction between conventional and ethno-STEM based thematic learning with the categories of students' initial abilities on students' numerical literacy. However, for each level of students' early mathematical ability, the increase in numerical literacy of students who received learning with an ethno-STEM approach was higher than students who received conventional learning.

Islamic education at Madrasah Tsanawiyah Thoyyib Hasyim Jorongan Leces Probolinggo is committed to integrating and applying the teachings of the Qur'an and Hadith in all aspects of education, with the aim of shaping students who are not only intellectually competent but also possess noble character as a fundamental aspect of their personality. This research aims to explore the forms, processes, opportunities, challenges, and implications of integrating the Qur'an and Hadith in the development of Islamic education at this institution. The results of the study show that Madrasah Tsanawiyah Thoyyib Hasyim Jorongan Leces Probolinggo integrates Islamic values into various subjects, such as mathematics, science, and religious studies, through an interdisciplinary approach. The strengthening of students' character is carried out through routine activities based on the teachings of the Qur'an and Hadith, such as congregational prayers and reading the Qur'an. Despite the challenges related to teachers' limited understanding in integrating religious values with general subjects, there are significant opportunities to develop Islamic-based education. The implications of this integration include the formation of students with piety, noble character, and responsibility. Strategies that need to be implemented to strengthen this integration in the future include the development of a more flexible curriculum, continuous teacher training, and the utilization of technology in learning. Therefore, Madrasah Tsanawiyah Thoyyib Hasyim Jorongan Leces Probolinggo has successfully created a synergy between academic education and religious education, providing students with knowledge for both this world and the hereafter  

The purpose of this study is to find out whether there is an influence of blended learning on metacognitive awareness, self-efficacy, student learning independence, and student learning achievement and to find out whether blended learning is superior to scientific learning in mathematics learning in the aspects of metacognitive awareness, self efficacy, student learning independence, and student learning achievement. This research is a pseudo-experimental research with the population of all students in grade XI MAN 2 Wonosobo for the 2023/2024 school year. Of the ten existing classes, two classes were selected by purposive sampling, namely classes XI - 3 and XI - 4. From the two selected classes, then randomly selected so that class XI - 4 was obtained as an experimental class, namely the class that received blended learning and class XI - 3 as a control class that received mathematics learning with scientific learning and vector subjects. The instruments used to collect data are in the form of student learning achievement test questions and questionnaires on metacognitive awareness, self-efficacy, and student learning independence. Validity is determined by the consideration of the validator who concludes that the instrument used in this study is valid. Meanwhile, Cronbach's alpha of all variables in this study showed reliable values. To see if there is an effect of blended learning on metacognitive awareness, self-efficacy, learning independence and student learning achievement after research treatment is carried out in both the experimental and control classes, the T2 hotteling statistical test is used. Meanwhile, to see the advantages of scientific learning with blended learning methods compared to scientific from the perspective of metacognitive awareness, self-efficacy, learning independence and student learning achievement from both classes, univariate t test statistics were used. The results of the study showed that :(1) there was an effect of blended learning on metacognitive awareness, self-efficacy, learning independence, and student achievement simultaneously; (2) scientific blended learning is not superior to scientific in terms of metacognitive awareness, self-efficacy, and learning independence of high school/MA students; (3) scientific blended learning is superior to scientific in terms of learning achievement of high school/MA students.

Mathematics is an important subject for students to master in facing the challenges of the 21st century. However, there are still many students who experience difficulties in learning mathematics. This is because learning mathematics is abstract and far from life. Therefore, the student mathematics education study program community service team introduced the Indonesian realistic mathematics education (PMRI) learning model at MTs Janki Dausat to increase student motivation in learning mathematics. As a result of this activity, students become motivated and enjoy learning mathematics, which can be seen from the students' enthusiasm and activeness in learning mathematics.

This research aimed to improve students’ activities and learning outcomes of Mathematics in solving problems related to money on chapter whole numbers up to 100.000 by using project-based learning integrated with social emotional learning (SEL) for students at class 5 in SDN Pilangrejo 02. This research used classroom action research which carried out in 2 cycles. Each cycle was carried out in 4 stages, includes planning, action, observation, and reflection. This research used observation, tests and documentation as the instruments. The data analysis used qualitative and quantitative descriptive analysis. The result of this study showed the percentage of students’ activity in cycle I reached 58.84% and increased 87.23% in cycle II. The percentage of learning outcomes in pre-test (pre-cycle) reached 27.28% with average score of 60, it increased 72.23% with average score of 80 in post-test (cycle I), and increased to 90% with average score of 93 in post-test (cycle II). So, it concluded that the implementation of Project Based Learning integrated with Social Emotional Learning (SEL) can improve the students’ activities and learning outcomes of mathematics subjects at class 5 in SDN Pilangrejo 02.

This research is classroom action research (PTK) which aims to determine the increase in learning motivation and learning outcomes of grade IV elementary school students in mathematics subjects through the Teaching at the Right Level (TaRL) approach. Data was collected using questionnaire and test techniques, which were carried out three times, namely at the pre-cycle stage, cycle I and cycle II. The application of the TaRL approach in mathematics learning has proven successful in increasing students' learning motivation. Based on the results of observations, the percentage of learning motivation increased from 49% in the pre-cycle to 61% in cycle I, and rose again to 78% in cycle II. Apart from that, student learning outcomes also showed a significant improvement, with the percentage of completion increasing from 56% in the pre-cycle to 70% in cycle I, and reaching 83% in cycle II, which is included in the good category.

This research is an action to find out the influence of the NHT learning model assisted  by Ice Breaking on the Learning Interest of Class XI C.1 Students of SMA Negeri 1 Kuta Utara. This classroom action research conducts a reflective action in order to improve learning practices for students in terms of professionalism. In this class action research, the subject of the study is students of class XI C1 SMA Negeri 1 Kuta Utara for the 2023/2024 school year consisting of 38 students. The score of 55.59 (low category) shows the results of the analysis of the first cycle. It is clear that students' interest in learning is still relatively low and there needs to be a big improvement in the second cycle. The score of 89.1 (very high category) was shown in cycle II after a careful analysis of the improvements in cycle I. So from the data obtained and processed in cycles I and II, it can be concluded that there is an influence in mathematics learning with the application of  the Numbered Head Together  type cooperative learning model assisted by Ice Breaking.

This research seeks to identify the sources and locations of arithmetic learning challenges related to integer counting operations. Class VI, which is the focus of this study, has an average math score that is lower than the KKM. Methods such as tests, observations, and interviews are used to gather data. Students' mastery of the topic of whole number counting operations was assessed using the test technique, which consisted of a 10-question essay. Finding out how the subject is doing during math learning activities and what variables could influence math learning are both accomplished via the use of the observation technique. The purpose of the interview was to get a clear understanding of the challenges that students have while studying the content for integer counting operations. Fifty percent of students had trouble with skills, 23.3% had trouble with ideas, and 20% had trouble with problem solving, according to the data from the final analysis. This includes students in the adequate group. Teachers are encouraged to shape mathematics teaching patterns based on more than just pupils' problem-solving abilities. More significant, however, is figuring out how to encourage pupils to comprehend and fully grasp current ideas so that they do not have any trouble understanding mathematics.