Shrimp shell waste is a potential marine biomass resource rich in bioactive compounds such as astaxanthin and chitin, yet remains underutilized in the livestock sector. This study aimed to evaluate the effect of incorporating shrimp shell meal into duck (Anas sp.) feed rations on the yolk color intensity of duck eggs. The experimental design applied a completely randomized design (CRD) with a single factor and four treatments: D0 (100% rice bran, control), A1 (rice bran + 2% shrimp shell meal), A2 (rice bran + 6%), and A3 (rice bran + 10%), with a 21-day observation period. The primary parameter measured was yolk color intensity, assessed visually using a standardized color scale. The results indicated that the addition of shrimp shell meal significantly enhanced yolk color intensity, with the highest pigmentation observed in the A3 treatment. Astaxanthin, functioning as a natural carotenoid pigment, was biologically absorbed and distributed into the yolk via lipophilic pathways, while chitin supported gut health and nutrient absorption efficiency. This study aligns with the principles of the circular economy by valorizing marine processing waste as a functional feed ingredient. A 10% inclusion rate was found to be visually optimal; however, further studies are required to assess its physiological impacts and economic feasibility in broader production contexts.

This study is a mini literature review aimed at exploring the use of the Math Master software in enhancing students’ computational thinking skills. Computational thinking is a crucial 21st-century skill, particularly in technology-based mathematics learning. This article reviews several relevant studies that discuss the use of educational software, specifically Math Master, in helping students solve mathematical problems systematically, logically, and efficiently. The review findings indicate that Math Master can serve as an interactive tool that supports conceptual understanding and encourages algorithmic thinking among students.

Understanding of Mathematics concepts is an important factor in determining students' learning success. However, the results of observations at SDN 33 Kalumbuk showed that fifth grade students still had difficulty in understanding Mathematics concepts. This can be seen from the low level of learning completion, which was only 36.84% in class VA and 33% in class VB. The low understanding of concepts is caused by the lack of interactive learning methods, so that students get bored easily and are less involved in the learning process. This article discusses the importance of understanding concepts in Mathematics learning and solutions that can be applied to improve student understanding. One of the proposed strategies is the use of the Make a Match learning model, which can increase student engagement and help them understand concepts more concretely and interestingly. In addition, problem-solving approaches, the use of visual media, group discussions, and continuous evaluation can also be applied to improve learning effectiveness. By implementing innovative and interactive learning methods, it is hoped that students' understanding of Mathematics concepts can improve, so that they are better prepared to face academic challenges and are able to apply Mathematics concepts in everyday life.
 
 

This research aims to explore the ways in which teachers address the challenges of learning mathematics for children in primary schools by referring to behavioristic theory. This theory emphasizes the central role of stimuli and reactions in influencing learning behavior, and the application of both positive and negative reinforcement to improve students' motivation and understanding. The approach adopted was a descriptive qualitative method using case studies in various primary schools. The results indicated that behavior-focused methods, such as providing repeated practice of problems, immediate feedback, use of concrete tools, and regular application of rewards and punishments, can improve students' enthusiasm and mathematics learning outcomes. However, teacher-driven learning and lack of innovation are barriers to implementation. Therefore, a combination with other methods is needed to make the learning process more thorough.

This research aims to examine the learning methods and challenges faced by several students when solving mathematics problems regarding number patterns, with an emphasis on analyzing students' thinking processes. This study employs an approach to analyze students' ways of thinking. In this study, a qualitative approach is used with a case study method on a group of junior high school students. Information was collected through observations and analysis of students' work. The findings of the research indicate that students apply various strategies in understanding the material of number patterns, which include memorizing patterns to trying to find their own formulas. However, many students face difficulties in drawing conclusions about patterns and connecting relevant mathematical concepts to everyday life. Common mistakes include errors in recognizing patterns, errors in calculations, and a lack of precision in understanding problems. Analysis of the thinking process shows that some students are still at the concrete operational thinking level, so they need visual aids and real-life examples to better understand patterns. This research emphasizes the need for an approach in teaching that can enhance students' abstract thinking abilities and requires varied practice in determining numerical pattern problems.
 
 

This article aims to understand the concept of energy sources from an early age in order to increase their awareness of energy use and conservation. However, science learning in elementary schools (SD) often faces problems in delivering complex and abstract materials. This study investigates various innovations in science learning, especially those related to energy sources. In this study, we review the literature on various creative methods for learning, including the use of game media, blended learning, and interactive game tools. The results show that the implementation of these innovations can improve students' desire to learn and their learning outcomes. Therefore, science learning at the elementary level can be assisted by the integration of technology and appropriate learning approaches.

This study aims to examine in-depth and comprehensively the various obstacles faced by elementary school students in understanding the concept of fractions. Fractions represent one of the key components in basic mathematics education and often pose a significant challenge for many students. Through a structured literature review and in-depth analysis of empirical data, this research seeks to clearly describe the various difficulties students encounter when learning and understanding fractions. Additionally, this study investigates the underlying factors contributing to these difficulties and offers a number of creative and effective instructional strategy recommendations to help students overcome these barriers. The findings indicate that the primary challenges hindering students' understanding include several critical aspects: weak comprehension of basic fraction concepts, difficulty in representing fractions both visually and symbolically, struggles with performing arithmetic operations involving fractions, and challenges in relating fraction concepts to real-life situations. A thorough understanding of these challenges is expected to serve as a crucial foundation for improving the quality of mathematics instruction at the elementary school level.
 
 

The low activity of students in biology learning is the main challenge in efforts to improve the quality of science learning in secondary schools. This study aims to analyze the effectiveness of the application of the Project Based Learning learning model in increasing student activity and learning outcomes in respiratory system materials at SMA Negeri 2 Langowan. This research is a Class Action Research that is carried out in two cycles, each of which includes stages of planning, action, observation, and reflection. The subjects of the study were 13 students in grade XI. The instruments used include student activity observation sheets and the final test of the cycle based on description questions. The results showed that in the first cycle, only 38.46% of students achieved learning completeness with an average score of 60. However, after improving the strategy in cycle II through active mentoring, learning motivation, and strengthening group work, completeness increased to 92.30% with an average score of 84.69. These findings indicate that the Project Based Learning learning model is able to build student activeness through contextual, collaborative, and hands-on experience-based learning. The increase in activeness is reflected not only in test results, but also in students' active participation in discussions, group presentations, and project completion. The implications of this study show that Project Based Learning is feasible to be implemented as an innovative learning strategy to improve the quality of student interaction and engagement in biology learning on an ongoing basis.

The quality of human resources is an important aspect in regional development, which is reflected through the Human Development Index (HDI). HDI is influenced by various factors, including the economic conditions and education of the community. This study aims to analyze the effect of Gross Regional Domestic Product (GRDP) per capita and Average Length of Schooling (RLS) on HDI in South Kalimantan Province. The data used comes from the Central Statistics Agency (BPS) with a coverage of 13 regencies/cities during the period 2018 to 2023. The analysis method used is multiple linear regression with the help of R Studio software. The results of the study show that both GRDP per capita and RLS have a significant effect on HDI, both simultaneously and partially. The resulting model has an adjusted R² value of 0.8627, which indicates that 86.27% of the variation in HDI can be explained by these two variables. The classical assumption test including linearity, conditional zero error expectation, absence of multicollinearity, autocorrelation, homoscedasticity, and residual normality shows that the model used has met all the criteria as the Best Linear Unbiased Estimator (BLUE). Thus, this regression model is valid for use in estimating and making inferences on the factors that influence the HDI in South Kalimantan Province. This finding confirms that increasing education and economic growth are strategic steps in accelerating human development in South Kalimantan.

The low learning outcomes of students in Biology learning at SMA Negeri 1 Tutuyan is the background for the need for learning innovations that are able to increase active participation and conceptual understanding. This study aims to analyze the effectiveness of the Group Investigation learning model in improving student learning outcomes in Cell materials. The research used a pseudo-experiment method with a one group pretest-posttest design. The research sample amounted to 35 students from class XI Science who were selected purposefully. The instruments used were multiple-choice tests, pre-tests and post-tests of 25 questions for each test. The results showed an increase in the average score from 23.14 in the pre-test to 83.14 in the post-test. Inferential data analysis using the t-test showed a t-calculated value of 89.55, far above the t-table at a significance level of 5%. The category of student learning outcomes has also undergone significant changes, from a very low majority to a high and very high majority. The application of the Group Investigation model encourages students to be active in investigation, group discussions, and independent learning, which strengthens their collective and individual mastery of the material. These findings prove that the Group Investigation model is effective in improving learning outcomes, and can be implemented as a learning strategy in the Independent Learning Curriculum. This study contributes to the development of cooperative learning models in the context of Biology learning at the high school level, and can be replicated in other materials and levels to strengthen its effectiveness.

This study aims to examine the effectiveness of the scientific approach in improving Natural Sciences (IPA) learning outcomes among Elementary School students. The method used is a literature review with a descriptive qualitative approach by analyzing various scientific sources such as journal articles, books, and relevant research reports from the past five years. The findings indicate that the scientific approach has a positive impact on students' understanding of science concepts, critical thinking skills, as well as motivation and engagement in the learning process. This approach encourages students to actively participate in scientific processes through the stages of observing, questioning, experimenting, reasoning, and communicating. These stages help make learning more meaningful, contextual, and aligned with students’ cognitive development. However, its implementation still faces several challenges, such as limited facilities and infrastructure, constrained instructional time, and the lack of teacher training in applying this approach effectively. Therefore, support from various stakeholders—including schools, government, and the community—is needed to overcome these obstacles and enhance the quality of science education. Overall, the scientific approach is considered effective in creating interactive, reflective, and student-centered science learning at the Elementary School level.

This study discusses the history and development of the number system in India and its influence on the evolution of mathematics worldwide. The Indian number system has evolved since the Indus Valley Civilization and has undergone significant innovations, such as the invention of the number zero by Brahmagupta and the development of the place value system, which forms the basis of the modern decimal number system. This research employs a qualitative method with a library research approach, involving the analysis of various written sources, such as books, academic journals, and historical articles on the Indian number system. The findings indicate that the Indian number system has had a profound impact on the advancement of mathematics, particularly after it was introduced to the Islamic world by scholars such as Al-Khwarizmi, who later disseminated it to Europe, making it the foundation of the numerical system used today. Additionally, the Indian number system contributed to the development of various branches of mathematics, including algebra, calculus, and number theory, and served as the foundation for modern technology, including computers and calculators. Therefore, understanding the history of the Indian number system should be reinforced in mathematics education, accompanied by further research on its applications in contemporary science and technology.

PP PAUD and Central Java Dikmas are tasked with overseeing all early childhood education institutions and community education throughout the Central Java region. This study aims to analyze the process of planning, organizing, implementing, and evaluating the massive open online course (MOOC) that took place at PP PAUD and Dikmas Central Java during the COVID-19 pandemic. This research is quantitative research with a descriptive approach. The sample in this study were PAUD teachers throughout Central Java and MOOC Education and Training supervisors at PP PAUD and Dikmas Central Java. Sample selection was carried out using the Simple Random Sampling method. The research instruments used were questionnaires, documentation, and interviews that experts have validated. Data analysis techniques used descriptive statistical analysis and percentages for questionnaire results and verbal analysis for interviews and documents. Based on the results and analysis of the discussion, we observe that MOOC in PP PAUD and Central Java Dikmas is going well. However, the content developed must still be adapted to the scope of PP PAUD. The materials in MOOCs need to be entirely focused on the essential competencies and core competencies of PP PAUD. Therefore, it is necessary to manage and develop video-based training through MOOCs.

This research aims to improve students' learning outcomes on biodiversity materials by applying inquiry learning strategies in class X-A SMA Negeri 2 Tondano. This research was carried out in two cycles, each with three meetings. In the first cycle, the student's learning outcomes showed classical completeness only reached 50%, with an average score of 75.6. This is due to students' lack of active participation in passive learning. Based on the reflection results, improvements were made in the second cycle by emphasizing increasing students' activeness in asking, answering, and discussing. The results in the second cycle showed a significant improvement, with an average score of 86.6 and classical completeness reaching 90%. This improvement shows that inquiry learning strategies effectively improve student learning outcomes. Although two students had not achieved completeness, the remedial provided succeeded in helping them achieve results on par with other students. This research proves that inquiry-based learning can increase students' involvement in learning and improve their learning outcomes. Therefore, it is recommended that inquiry learning strategies be applied more widely in other classes to improve the quality of education.
 

Mathematical connection ability is a crucial competence that should be developed from the elementary level, as it helps students understand the interrelationships between mathematical concepts and their applications in daily life. This study aims to analyze the mathematical connection abilities of first-grade elementary school students in learning flat shapes. The research employed a descriptive quantitative method using cognitive and psychomotor assessment instruments. The cognitive test consisted of multiple-choice and essay questions measuring students' ability to recognize, understand, classify, and apply flat shapes. The psychomotor test involved tasks such as assembling flat shapes into meaningful objects and classifying shapes by type. The results showed that students were fairly capable of identifying and grouping flat shapes, but had difficulty explaining classification reasons or relating shapes to real-life objects. The psychomotor results also indicated that fine motor skills and the ability to make real-world connections need improvement. These findings highlight the importance of contextual learning approaches and the use of concrete media to strengthen students’ mathematical connections from an early age.
 
 

This study aims to determine the effect of the Discovery Learning model assisted by E-LKPD on students' physics learning outcomes. The research was conducted at SMA Negeri 1 Percut Sei Tuan. This type of research is a quasi-experimental design with a pretest-posttest control group design. The sampling technique used in this study was cluster random sampling, consisting of an experimental class and a control class, each with 36 students. The solution to address the research problem was to apply the Discovery Learning model assisted by E-LKPD in the experimental class and conventional learning in the control class. The subjects of this study were students in classes X-3 and X-4. The instrument used was a learning test in the form of 15 multiple-choice questions. Before the different treatments were applied, a pretest was conducted, resulting in an average pretest score of 48.1 for the experimental class and 45.6 for the control class. Normality and homogeneity tests on the pretest data indicated that both classes' data were normally distributed and homogeneous. The two-tailed t-test resulted in a value of tcount < ttabel = = 0.97 < 1.994, which means H0 was accepted, indicating that the initial critical thinking ability of the experimental and control classes was the same. After the different treatments, a posttest was conducted for both classes, which resulted in an average posttest score of 76.5 for the experimental class and 63.5 for the control class. Normality and homogeneity tests on the posttest data showed that both classes' data were normally distributed and homogeneous. The one-tailed t-test resulted in tcount < ttabel = = 4.860 > 1.666, so the alternative hypothesis (Ha) was accepted. It can be concluded that the use of Discovery Learning assisted by E-LKPD has a significant effect on students' learning outcomes on the topic of work and energy in class X at SMA Negeri 1 Percut Sei Tuan.

The objectives of the study are (1) to determine the critical thinking skills of 5th grade students of SD Negeri 03 Jumapolo, Karanganyar. (2) to determine the factors underlying the critical thinking skills of 5th grade students of SD Negeri 03 Jumapolo, Karanganyar. This study used qualitative research that lasted for 2 weeks. Data collection techniques in this study used observation, interviews, and documentation. The results of this study indicate that (1) the critical thinking skills of 5th grade students of SD Negeri 03 Jumapolo, Karanganyar in solving story problems on addition and subtraction material do not fully have critical thinking skills because there is one aspect that has not been fulfilled, namely not being able to conclude addition and subtraction material through story problems. (2) The factors that influence critical thinking skills in 5th grade students of SD Negeri 03 Jumapolo, Karanganyar are 2 factors, namely psychological factors and physiological factors.
 

This article aims to explore the opportunities of optimizing Artificial Intelligence (AI) in supporting adaptive, inclusive, and innovative learning in the Society 5.0 era. With its potential to revolutionize education through content personalization, responsive learning, and administrative efficiency, AI is the key to future education transformation. The research approach is qualitative through literature analysis and case studies, covering the implementation of AI in adaptive learning, educational chatbots, and virtual reality technology. The researcher's review of several studies revealed that AI not only eases the administrative burden on teachers, but also provides individually tailored learning plans and improves students' digital literacy. However, the integration of AI in education faces challenges such as resistance to change and disparities in access to technology. To overcome these challenges, the development of inclusive policies as well as AI-based training for educators is recommended, thus ensuring the ethical and effective application of technology, in line with the humanistic and future-oriented vision of Society 5.0.

Improving the quality of Human Resources (HR) is a major challenge in facing global competition. Education as the main means of improving the quality of HR in Indonesia is still faced with the problem of inequality of access and quality between regions. This inequality causes disparities in educational development between urban and remote areas. This study focuses on grouping provinces in Indonesia based on aspects of educational development in 2023, using cluster analysis. Secondary data from the Central Statistics Agency (BPS) is used as the basis for analysis, including variables of average length of schooling, Gross Participation Rate (APK), Pure Participation Rate (APM), number of senior high schools, and community literacy development index. This study uses hierarchical and non-hierarchical cluster analysis methods to group provinces in Indonesia. The results of the hierarchical cluster analysis using the average linkage method show the most optimal cluster with the formation of three clusters. The first cluster consists of 31 provinces, the second cluster consists of 2 provinces, and the third cluster consists of 1 province. Data characteristics show large variations in the number of senior high schools and relative homogeneity in the average length of schooling between provinces.

This research focuses on the development of contextual-based interactive learning media to improve mastery of reaction rate concepts and develop the character of high school students in remote areas. This learning media was developed to provide learning experiences that are relevant to everyday life, therefore the concepts of reaction rate are simpler to understand and apply in students. In addition, this contextual approach also aims to encourage character development, such as responsibility, discipline, creativity, curiosity, and communicativeness during the learning process. A literature review was conducted to gather articles relevant to this topic, with a published time frame of 2018 - 2025. The review shows that this media significantly helps students in understanding the concept of learning material, critical thinking, as well as strengthening positive character aspects that support learning success. This research concludes that contextual-based interactive learning can be an efficient option in the science learning process in high school.

Indonesia is renowned for its abundant and diserve natural resources, including various plants. Many medicinal plants are traditionally utilized due to their therapeutic benefits. The utilization of minnieroot leaves as a traditional medicine shuld be supported by comprehensive studies to identify the active compounds, thereby omproving their quality, safety and afficacy. Secondary metabolites in minnieroot, particularly in the leaves, contain polyphenolic compounds, while the roots are known to contain flavonoids. This study aims to identify secondary metabolite compounds in minnieroot (Reullia tuberosa L.) leafs methanol extract. The study utilized methanol as a solvent for the extract solution became colorless, resulting in a extract yield of 8,02% of the leaf’s weight. The qualitative test confirmed the presence of secondary matebolites, specifically flavonoids and tannin in the methanol extract of minnieroot leaves. The final result from column chromatography separation  shows that crystals are formed in the sixth vial. The crystals areb brownish blackn in color and weigh 0, 1235 g.

One of the competencies that must be mastered to face global competition in the 21st century world of work is individuals who have critical thinking skills. Critical thinking is one form of HOTS application. The purpose of this study was to analyze the HOTS test instrument to measure critical thinking skills. The method used is Research and Development which is reduced to 3D (define, design, development). The subjects in this study were students of class XI MIPA MAN 2 Wonosobo, with data collection techniques namely interviews, tests and questionnaires. The data analysis technique in this study was validation by experts and analysis with the Rasch model assisted by Ministep software. Analyzes with the Rasch model include summary statistics, item fit, item size, item correlation, and person size. Validation from experts gets an average score of 140 out of 160 with an average proportion of 87.7% which indicates a very valid instrument. Summary statistics for the testing phase show that the measurement of the person is 0.69 and 0.73 and the measurement of the item is 0.86 and 0.87, which means that the consistency of the student's answers is in the sufficient category, but the quality of the items is good. For the person measure implementation test stage it showed 0.69 and 0.74 meaning that the consistency of student answers was also in the sufficient category, while the quality of the items for the reliability aspect was in the special category with values ??of 0.96 and 0.97. Item Fit or the level of adding item items shows a 100% fit item from the testing stage to implementation.

Vegetative propagation is an effective method for producing high quality plant seeds with similar characteristics to the parent plant. Techniques such as grafting and grafting are used to accelerate growth and increase plant resistance to pests and diseases. The advantages of this method compared to generative propagation include a faster fruiting period and consistency in the aroma and taste of the fruit. This research also highlights the importance of genetic compatibility between rootstock and scion and the use of phytohormones in the success of vegetative propagation techniques. The results show that both techniques can increase plant productivity, speed up fruiting time, and produce plants that are stronger and more adaptive to environmental conditions

This study aims to describe the visual thinking of high school students in understanding three-dimensional problems. This research is a descriptive research with a qualitative approach. Two students with medium and high mathematical skills of the female gender were selected as research subjects. Data was collected by giving three-dimensional problem-solving tasks according to Polya's steps and interviews. Students' visual thinking is described based on seeing, recognizing, imagining, and showing. The results of the study show that at the comprehension stage, students with medium and high mathematical skills do looking and seeing, recognizing and imagining at the planning stage, and showing the steps to implement the problem-solving plan appropriately but in a different way, students with medium ability use more concise steps and vice versa for high-ability students; At the re-examination stage, the two subjects showed (showing) the conclusion of the solution solution, but did not show (showing) re-checking.

Teaching materials are learning resources that are used to provide information that is prepared to support learning activities that are designed systematically and contain material on learning methods and testing or assessment options that help achieve the expected goals. The aim of this research is to determine the validity and practicality of Project Based Learning (PjBL)-based LKPD to train students' collaboration skills on environmental change material at Mas Al-Jihad Pontianak. This research uses the R&D (Research and Development) method with the ADDIE model which consists of Analyze, Design, Development, Implementation and Evaluation. The research results show that the average results from material and media experts are 91.16% with very valid criteria, the average of student and teacher response questionnaires is 95.67% with very practical criteria, so that the LKPD is based on Project Based Learning (PjBL ) to train students' collaboration skills on environmental change material, the project results were assessed at 82.85% with the criteria being very suitable for use as teaching material in the classroom learning process. Meanwhile, the collaboration questionnaire showed an average result of 63.70% with practical criteria to use.

This research discusses the analysis of students' learning difficulties in understanding cube building material. Mathematics is a basic science that must be studied from an early age because it is closely related to other sciences in order to advance to the next level. The research was created to solve students' learning difficulties at SD Negeri 104208 Cinta Rakyat. This research uses a qualitative approach with descriptive research type. The results obtained are that students still lack understanding of the material that has been presented by the teacher in the process of teaching and learning activities, there are many students who do not understand the material explained by the teacher. It can be seen that students' learning difficulties are also determined by low interest in learning and Lack of understanding of the material taught. Several factors include disinterest in mathematics and ineffective use of learning media. This research suggests that schools are expected to innovate in the use of learning media and learning methods that are changed and adapted to students' learning needs and interests.

Surfaces in three-dimensional space can be represented through explicit, parametric and implicit equations, which describe the relationship between the variables x, y and z. Graphs of linear equations produce flat planes, while quadratic equations form objects such as spheres or ellipsoids. In this research, a theoretical approach is combined with interactive visualization to analyze various surface shapes. Through the use of GeoGebra software, this analysis makes it easier to understand surface orientation and shape, such as normal vectors and curvature, as well as applications in vector fields. This research also investigates the concepts of Cartesian coordinates in three-dimensional space, by depicting surfaces in the form of graphs of functions of two variables. It is hoped that the results of this research can provide deeper insight into the geometric properties of surfaces and how to visualize them effectively in mathematics and physics applications.

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

Learning outcomes are a series of skills, knowledge, attitudes and values ??obtained by students in their thinking process during learning activities. This research aims to improve the learning outcomes of class X-4 students on opportunity material by applying the problem based learning model assisted by wordwall media. To see an increase in learning outcomes, classroom action research was carried out for two cycles using the method of observation and analysis of test results with research instruments in the form of pretest posttest questions in the 2023/2024 academic year. The subjects of this classroom action research were 34 students from class X-4 at SMA Negeri 9 Surabaya. The research results showed a consistent increase in learning outcomes over two cycles in the opportunity material. Before the action was taken there were 18 students who had not reached the KKM and only 16 students had completed it so the percentage of completion was 47.05% with an average learning outcome of 67.76. In the first cycle, the number of students who completed their learning outcomes reaching the KKM increased to 28 with a completion percentage of 82.35% and an average learning outcome of 78.23. In cycle II, the number of students whose learning outcomes achieved the KKM consistently increased so that there were 31 with a completion percentage of 91.17% and an average learning outcome of 89.54.

In class VI.A students, there are still many students having difficulty in doing statistics problems. Therefore, this research needs to be done in order to find out the learning obstacles experienced by grade VI students of SDN 6 Palembang on statistics material. Learning obstacle is divided into three types, namely ontogenic obstacle, didactial obstacle, and epistemological obstacle. The research method used in this study is a descriptive qualitative method. The instruments used in this study consisted of learning obstacle diagnostic tests, interviews, material analysis, lesson plan analysis, and textbook analysis and students of grade VI.A SDN 6 Palembang as the subjects in this study who were respondents who carried out learning obstacle diagnostic tests and interviews. Learning obstacles can be found based on the results of the analysis of learning obstacle diagnostic tests, interviews with homeroom teachers and students of class VI.A, lesson plan analysis and textbook analysis. The results of this study found learning obstacles, namely ontogenic obstacles such as lack of interest in learning mathematics and lack of student activeness in learning, didactical obstacles such as learning resources that are still limited and epistemological obstacles, namely lack of understanding of statistical concepts.

Learning outcomes are a unit of value that is a benchmark in determining the success of learning. This low learning outcome can be caused by two factors, namely internal factors and external factors. Therefore, this research discusses the effectiveness of problem solving models on student learning outcomes.   This research aims to determine the effectiveness of the problem solving learning model on the mathematics learning outcomes of class V students at SD Negeri 80 Palembang. This type of research is a quasi experimental design with a nonequivalent control group design type. The subject of this research is class V of SD Negeri 80 Palembang. This research data collection technique uses observation, tests and documentation. The data analysis technique using hypothesis testing assisted by SPSS version 26 resulted in a tcount value of 2.115 > ttable 2.045 so it can be concluded that there is a significant difference in the learning outcomes of students using the problem solving model at SD Negeri 80 Palembang

This study was conducted by looking at the low learning outcomes of class X-2 students at SMA Negeri 9 Surabaya in the previous material, namely SPLTV. This study was conducted with the aim of improving students' mathematics learning outcomes in the quadratic equation material by implementing a cooperative learning model of the team games tournament (TGT) type using the help of wordwall. This study is included in classroom action research which is carried out in two cycles. The subjects of the study used were 36 class X-2 students at SMA Negeri 9 Surabaya. The research data were obtained through pretest, observation, and posttest. The analysis data from the pretest and posttest results were in the form of quantitative data which would be used to determine the increase in student learning outcomes. While the analysis data from the observation results in the form of qualitative data were used as a guideline to improve and perfect learning activities from cycle I to cycle II. Based on the results of the study that has been carried out, it shows that implementing a cooperative learning model of the team games tournament (TGT) type using the help of wordwall on the quadratic equation material can improve the learning outcomes of class X-2 students at SMA Negeri 9 Surabaya. The classical completeness of the pretest cycle I was 44.4%. After the implementation of the TGT type cooperative learning model, there was an increase to 77.8% in the posttest of cycle I. In cycle II, it increased again to 94.6% with a classical completion target of 85%.

This research aims to determine the influence of the Problem Based Learning Model on Students' Critical Thinking Ability on Ecosystem Material for Class X Students of State High School 2 Gowa. This type of research uses a quasi-experimental type of research or also called quasi-experiment with a "random pretest posttest control group" design model. There are two data collection techniques in this research, namely, test and non-test, then the data collected is analyzed using descriptive analysis and inferential test analysis. The research results show that the average critical thinking ability students in the experimental class who were taught using the Problem Based Learning learning model were in the very good category with an average score of 78.52 and students' critical thinking abilities, while in the control class who were taught using the lecture method were adequate with an average score 52.55. Inferential analysis in hypothesis testing shows significant results with a sig value of 0.000 > 0.05 so that there is an influence of the Problem Based Learning learning model on students' critical thinking abilities in ecosystem material. This is also reinforced by the results of observations regarding student activity increasing.

The aim of this research is to increase students' motivation to learn physics after participating in learning activities using scientific-based physics E-books. This research is development research using the 4D model. The subjects of this research included students in class VIII.1 of SMP Negeri 11 Lubuklinggau. The data collection technique was carried out using a learning motivation questionnaire. The assessment of student learning motivation significantly increased with the results before using the media only getting a score percentage of 49%, while the results of the student learning motivation questionnaire after using learning media got a score percentage of 86% in the very high category. Based on the results of the analysis, it can be concluded that the learning media is effective in increasing students' learning motivation

Mathematically, in calculating oscillations and waves, it can be used using analytical and numerical techniques. For simple movements, numerical techniques are easier to perform than analytical techniques. Because, apart from the difficulty of using analytical techniques, the calculations carried out are also complex. The actual value of a wave or oscillation can be determined using analytical techniques, while numerical techniques are simply calculations carried out close to the analytical value. The aim of this paper is to analyze analytical and numerical techniques in wave and oscillation analysis. The type of research used in this research is based on qualitative research. The results obtained in determining trigonometric integrals require a calculation that can use analytical and numerical techniques. Numerical techniques are calculations that are almost correct or close to the value. However, to get the actual value correctly, analytical calculations are needed. Analytical calculations are quite difficult to do, but need to be done to serve as a reference. The conclusion drawn is that in trigonometric integrals in wave and oscillation analysis, numerical calculation techniques and analytical techniques can be used. When using numerical techniques, you can use formulas 
, whereas calculations using analytical techniques can use formulas.

The success of the learning process is highly desired in school education. One of the key factors in achieving success is the teacher's selection of appropriate methods for delivering the lesson material in class, which contributes to students' learning outcomes. In mathematics instruction, particularly on the topic of Statistics in class X-7 at SMA Negeri 9 Surabaya, the results have been unsatisfactory, with an average score of 59 for the 2023/2024 academic year. Therefore, improvement is needed through the implementation of the Team Assisted Individualization (TAI) cooperative learning model. The subjects of this study are students of class X-7 at SMA Negeri 9 Surabaya for the 2023/2024 academic year, consisting of 36 students. This study involves a mathematics teacher and an observer. The data collection tools used include formative tests, observation sheets for the teacher, students, and group discussion activities, as well as reflection questionnaires on the learning process. Based on the research findings, it can be concluded that the application of the TAI cooperative learning model can improve the learning outcomes of class X-7 students at SMA Negeri 9 Surabaya on the topic of Statistics. This study is expected to encourage teachers to implement the TAI cooperative learning model in Statistics to enhance students' learning outcomes in Mathematics.

This study aims to: 1) Describe the profile of students' mathematical literacy abilities in the personal context domain in solving algebra problems based on components in class VII students of SMP Negeri 9 Singkawang in the 2020/2021 academic year; 2) Describe the profile of students' mathematical literacy abilities in the personal context domain in solving algebra problems based on components in class VII students of SMP Negeri 9 Singkawang in the 2020/2021 academic year; 3) Describe the profile of students' mathematical literacy abilities in the personal context domain in solving algebra problems based on components in class VII students of SMP Negeri 9 Singkawang in the 2020/2021 academic year. This research method is a qualitative research method. The subjects in this study were 30 class VII A students. The object of this study is mathematical literacy abilities in algebra material. The data collection instruments were written tests and interviews in accordance with the strategic competency indicators that had been tested with content validity, construct validity, reliability, level of difficulty and discriminatory power. The results of the study showed that: 1) Of the 30 students who took the mathematical literacy ability test, in the personal context domain the average student score was 45.83 and was in the moderate category; 2) Of the 30 students who took the mathematical literacy ability test, in the work context domain the average student score was 57.22 and was in the moderate category; 3) Of the 30 students who took the mathematical literacy ability test, in the general context domain the average student score was 54.44 and was in the moderate category.

Numerical integration is a method used to calculate the integral of functions that cannot be integrated analytically. Several methods that are often used in numerical integration include that Simpson 1/3 method, Simpson 3/8 method, and the Trapezoidal method. This research aims to apply and compare the accuracy and efficiency of the third method in solving various types of integral functions using computing software. With the help of software such as MATLAB and Python, the precision of the results obtained from each method is analyzed and compared with analytical solutions (if available) or approximate integral value estimates. The results show that the Simpson 3/8 method tends to be more accurate for more complex functions than the Simpson 1/3 and Trapezoid method. However, the Trapezoidal method has advantages in computational speed and algorithm simplicity. This study provides important insights for computing software users in selecting appropriate numerical integration methods based on function complexity and accuracy requirements.

The problems in this study are the lack of students' ability to understand the lessons given, the results of the Mathematics learning exam that have not reached the KKM, and the teacher has not applied various innovative media. This study aims to determine the effect of learning outcomes of class V students of SDN 101746 Klumpang Kebun in learning Mathematics on flat shape material using Geoboard learning media, which consists of two classes. The researcher took class V A and class V B to be used as samples totaling 24 people as the experimental class and 22 people as the control class. The type of research used in this study is quantitative quasi-experimental (Quasi Experimental Design). The design in this study is Nonequivalent Control Group Design, this design the experimental group and the control group are not selected randomly. Data collection techniques with observation, testing and documentation. After the pretest ability is obtained, the next step is to conduct learning with Geoboard learning media for class V. So that the posttest ability is obtained in the experimental class students with an average learning outcome of 88 and the control class 74. It is clear that the increase in the experimental post-test score is on average higher than the control class. After the pre-test and post-test values ??are known, a hypothesis test is carried out using the t-test. The basis for taking the independent t-test at the sig level (2-tailed) of 0.01 <0.05, which means that the hypothesis is accepted, namely that there is an influence of the use of Geoboard learning media on the learning outcomes of mathematics on flat building material for grade V students of SDN 101746 Klumpang Kebun.

Numerical literacy is a vital skill in daily life and plays an important role in students' mathematical problem-solving abilities. This study aims to develop an assessment instrument that can measure the numeracy literacy of grade V elementary school students in understanding and applying the concept of comparative scale. This study uses a development method using a 4D development model for the stages of define, design, develop, disseminate The assessment instrument developed consists of various questions designed to test students' understanding of the comparative scale. The trial was carried out on a sample of grade V elementary school students to validate this assessment instrument. The results of the trial show that this assessment instrument has good validity and reliability in measuring students' numeracy literacy skills. This research is expected to contribute to improving mathematics learning in

This study aims to increase motivation to learn mathematics by using  the Culturally Responsive Teaching (CRT) approach assisted  by Quizizz Paper Mode on class X exponential material at SMAN 21 Surabaya. Learning motivation is one of the important factors in achieving students' academic success. The low motivation of students to learn in mathematics subjects is the background of this research. This type of research is Classroom Action Research (PTK) which is carried out during 2 learning cycles. The data collection techniques used are observation and questionnaires. The results of the study show that the application of  the Culturally Responsive Teaching (CRT) approach assisted by Quizizz Paper Mode can increase students' motivation to learn mathematics. The increase can be seen from the increase in the percentage of students' learning motivation in the first cycle of 80.9% with a high category and the percentage of students' learning motivation in the second cycle of 90.93% with a very high category. The result of the increase in learning motivation from cycle I to cycle II was 10.03%.

This study began with the problem of low Mathematics learning outcomes of class X-5 students of SMA Negeri 9 Surabaya, which were below the Minimum Completion Criteria (KKM) of 75. This study aims to improve the Mathematics learning outcomes of class X-5 students of SMA Negeri 9 Surabaya. This study is a classroom action research (PTK) conducted in two cycles in the 2023/2024 academic year with 37 students. The data collection method in this study used observation techniques. The instruments used were pretest and posttest questions. The results of the analysis showed that the application of the problem based learning (PBL) learning model succeeded in improving students' Mathematics learning outcomes in statistics material. Student learning outcomes increased from the pre-cycle to cycle I and to cycle II. Before the action, only 10 students achieved KKM with a classical completion percentage of 27.02%. In cycle I, the number of students achieving KKM increased to 26 with a classical completion percentage of 70.27%. In cycle II, the number of students achieving KKM increased again to 31 with a classical completion percentage of 88.57%.
 

This research aims to increase interest in learning and critical thinking of class The background to this research is because students' low interest in learning, especially in learning mathematics. In the learning process, a student's interest in learning plays an important role in the teaching and learning process, because if students have low interest in learning, it will be difficult for them to receive knowledge from the teacher, so that learning outcomes will be less effective. This research uses the Classroom Action research method (PTK) which consists of two cycles. The techniques used for data collection are: planning, implementing actions, observing and evaluating and reflecting. Before that, initial observations were carried out in order to find out information or characteristics of students. The results of the research show that the PBL type cooperative learning model was applied to matrix material for class XI students at SMA Negeri 21 Surabaya. This can be seen from the increase in implementation results, observation and reflection.  Students' learning activities experienced a significant increase in cycle two compared to cycle one. By learning using the PBL method, it is possible for students to more easily understand the material because it relates to problems around them and with discussions students can work together and help each other if they experience problems. Apart from that, this method can also help develop their critical thinking and communication skills.