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Learning the concepts of Greatest Common Factor (GCF) and Least Common Multiple (LCM) at the elementary school level faces significant challenges due to their abstract and complex nature. This study aims to develop and evaluate the effectiveness of innovative learning strategies using the congklak game in enhancing students' understanding of GCF and LCM concepts. The research employed a Research and Development (R&D) methodology with the ADDIE model, involving 14 fifth-grade students from SDS Nahdlatul Ulama Medan as research subjects. The congklak game was developed as an interactive learning tool that integrates traditional game elements with mathematical concepts. Implementation was conducted through structured phases including needs analysis, media design, prototype development, learning implementation, and outcome evaluation. Research findings demonstrate significant improvements in students' conceptual understanding and learning outcomes. The use of congklak media successfully created contextual learning experiences that enabled students to visualize abstract GCF and LCM concepts through manipulation of congklak seeds. This strategy also increased active student engagement, promoted collaborative learning, and created an enjoyable learning atmosphere. Data analysis showed improved average student scores and higher learning mastery rates compared to conventional teaching methods. This study provides practical contributions to the development of mathematics teaching strategies at the elementary school level, particularly in teaching GCF and LCM concepts. The research findings recommend the use of congklak media as an effective alternative for enhancing the quality of meaningful mathematics learning oriented toward conceptual understanding.

This article discusses the urgency of crossword puzzle-based IPAS learning media that is effective in increasing student participation in the learning process in grade V elementary school. This method allows discussion in large and small groups, learners can participate in learning activities. Creating fun learning and making it easier for students to achieve learning goals both in cognitive, affective and psychomotor aspects. . This article uses the Systematic Literature Review (SLR) method to explore various studies related to the use of crossword puzzle-based IPAS learning media. Currently, there are many learning models introduced by each teacher in school. The development of education in Indonesia still does not educate students' creativity because schools only measure students' cognitive levels so that the level of creativity of students in Indonesia is low. Learning media using crossword puzzles is proposed as a solution to increase student creativity, especially in elementary school students. So this research has the aim of analyzing the benefits of crossword puzzles as a means of increasing student creativity. This analysis was carried out by collecting various sources of scientific literature related to the research variables. The results of the literature review research show that learning media using crossword puzzles can increase the creativity of elementary school students.

Education policy functions as a framework that sets educational standards and goals, so as to ensure that all students have equal access to resources and learning opportunities. Through the development of relevant curricula and quality teacher training, education policies can improve teacher competency, which in turn has a positive impact on student learning outcomes. In addition, educational policies also include systematic monitoring and evaluation to identify areas of improvement, thereby enabling the necessary adjustment strategies to meet students' needs more effectively. This research aims to determine the role of change management in order to determine the role of educational policy in improving the quality of education for students. In this research, qualitative methods were used through literature. Well-designed education policies can improve access to education for all students. Education policy also plays an important role in improving the quality of teaching through continuous training for teachers. Participation of parents and communities in supporting educational policies.

This study aims to analyze the derivatives of a two-variable function and visualize the results in the form of a 3D graph using Python. Derivatives of two-variable functions are essential in multivariate analysis, such as optimization and surface analysis. The study uses Visual Studio Code as the Integrated Development Environment (IDE) to develop and run Python code, utilizing libraries such as NumPy, SymPy, and Matplotlib for mathematical computations and visualization. The first step involves programming partial derivatives of a two-variable function using SymPy. Subsequently, the derivative results are visualized in 3D using Matplotlib to illustrate the surface and gradient of the function. The goal of this research is to provide a deeper understanding of the application of derivatives in two-variable functions and the benefits of visualization in analyzing these derivative results. The findings are expected to contribute to the fields of mathematics education and numerical computation applications.

Teachers are people who carry out teaching or educational activities in a place, either in formal or non-formal educational institutions. Teachers are classified as a profession because teachers have expertise obtained through special education and training, which is stipulated and explained in Law number 14 of 2005 in Chapter IV Articles 8 to 12 which explain and determine the qualifications, competencies, and certification of teachers. Teachers are professional positions that have the main task of educating, guiding, teaching, directing, training, assessing, and evaluating students or learners. So in addition to being required to have competence, a teacher must also be able to develop attitudes and levels related to the development of learning and professionalism.

This study aims to analyze the policy of the mentoring program implemented at SDN Lulut 2 and its impact on teachers' performance and motivation. Using the CIPP evaluation model (Context, Input, Process, Product), this research assesses the effectiveness of the policy through both quantitative and qualitative data collection. Data were gathered through surveys of teachers and interviews with the school principal and education observers. The results show that the mentoring program has a positive influence on improving teachers' performance, especially in teaching and classroom management, and enhances teachers' motivation for continuous professional development. Additionally, the input and process factors of the mentoring program were found to significantly affect the outcomes. This policy is considered effective in supporting the professional development of teachers at SDN Lulut 2.

The trend of thinking about education suggests that, educational paradigm based on standards were discussed more and more, acknowledged and appreciated. This trend started from the realization that education need a reference of quality for each of the organizers and the educational unit which is called the National Education Standards (SNP). Indicator of education quality obtained through the filled based on eight ational Education Standards (SNP). Management of facilities and infrastructure were declare based on policy from Permendiknas No.19 in 2007. The data collection technique in this study was carried out by triangulation which was carried out using observations, interviews and documentation from the same source. While the data analysis techniques used are data collection, data reduction, data display, and drawing conclusions. The main objective is to create an effective, inclusive, and supportive learning environment that promotes the holistic development of each student. Some of the principles of student management include goals that are aligned with school management, activities that support educational goals, building student unity, good mentoring, and encouraging student independence. The scope of student management includes analysis of student needs, student recruitment, student selection, student orientation, student grouping, student leadership and development, and registration and reporting. This document also discusses the importance of understanding the characteristics of each student, creating a safe and comfortable learning environment, facilitating effective learning, encouraging active participation, building positive relationships, developing social skills, leadership, and supporting students' holistic development. Based on the previous research has found many gaps related with this context. However, there was no studies have evaluated the mechanism of facilities and infrastructure as a whole and systematically according to grant theory. These mechanisms include the supply, distribution, use and maintenance, inventory, and elimination of school facilities and infrastructure.

This research is entitled "Development of Mini Book Media to Improve Reading Ability in Indonesian Language Subjects in Class V" which is based on initial observations that there are class V students at SDS Prguruan Kebangsaan Medan who experience difficulties in reading. This research aims to develop and evaluate learning media in the form of mini books to improve the reading skills of class V students. The method used is research and development with 4D model design through the stages of definition, design, development and distribution. The results of the research show that the mini book media is very valid, practical and effective in improving reading skills with good quality and is suitable for learning in class V. It is recommended that this mini book media can be used by teachers to improve reading skills in Indonesian language subjects in class V.

The family environment is the main factor in forming a child's character. This research analyzes the role of the family in instilling moral and social values ​​in children. By using library research methods, this research aims to make adults, especially parents, aware that consistent parenting patterns, open communication, and providing good examples by parents greatly contribute to the development of children's character. This research highlights the importance of family and school collaboration in efforts to form a young generation with character. And the digital era has brought significant changes to the educational process. Apart from the role of the environment and family, this research also analyzes the influence of technology on the formation of children's character. Unwise use of technology can have a negative impact on a child's character development, such as a tendency towards individualism and a lack of empathy. However, the proper use of technology can be an effective tool in instilling positive values ​​in children. This research suggests the importance of digital literacy and adequate assistance for students in using technology.

The purpose of this study is to test the validity, level of practice, and effectiveness of PPT media in the form of hyperlinks to improve the learning outcomes of grade V students of SDN Ngepon 1. The research method is Research and Development (RnD) and the ADDIE method consists of stages in Analyze, Design, Develop, Implement, and Evaluate. The results of the validation of the media validator are 86.6%, the material validator is 96.3%, the language and number validator is 88.8%, the results of the teacher questionnaire are 87%, while the student questionnaire is 95% of 31 students. Indicates that the results of the study are valid assessments of PPT media with effective values, and product trials.

The purpose of this study was to determine the feasibility of critical thinking-based Learner Worksheets (LKPD) in Civics subjects in Class III MIN 3 Simalungun. The background is that the Learner Worksheet used at MIN 3 Simalungun is an instant version of the publisher provided by the school not the result of the preparation carried out by the teacher himself. And printed with black ink on opaque paper. LKPDs found in schools are not yet based on critical thinking. Indicators of critical thinking have not been included in the LKPD, so it does not train students' critical thinking skills. This research is an R&D (Research and Development) study. This study uses the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). Researchers only limit it to the development stage. Researchers modify the development model as needed, because in terms of the formulation of the problem it is only limited to whether or not the LKPD will be developed. So, for this reason, researchers do not carry out the implementation and evaluation stages. Based on the results obtained after being validated by validators from 3 teams of experts, namely from material experts, a percentage of 94% was obtained which was declared very feasible. The assessment of the media expert showed a percentage of 88%, also declared very feasible. In addition, the assessment of linguists obtained a percentage of 86% and was declared very feasible. So it can be concluded  

This research aims to develop problem-solving-based teaching materials to improve students' critical thinking skills in class IV PPKn subjects based on the fact that the use of teaching materials in each PPKn subject is rarely used because educators only rely on textbooks as a guide. And in improving students' critical thinking skills, teachers only use multiple choice tests in the textbook without asking students to create their own ideas from the knowledge they have obtained. This research uses the ADDIE model (Analysis, Design, Development, Implementation, Evaluation) but the focus of this research is limited to this stage Development just. Data collection techniques used were interviews, observation, questionnaires and documentation. The results obtained after the teaching materials were validated by 3 validator experts, namely material experts, obtained an average score of 89.3% with the "Very Eligible" criteria. The results of the media expert validation assessment obtained an average score of 94.3% with the criteria "Very Eligible". And the results of the linguist validation assessment obtained an average score of 82% with the criteria "Very Eligible". Meanwhile, the results of the teacher's assessment of problem-solving based teaching materials obtained an average score of 94.6% with the criteria "Very Appropriate". This shows that problem-solving based teaching materials are very suitable for use in the learning process to improve students' critical thinking abilities.

This research aims to develop a student digital worksheet product with a valid, practical, and effective model of Logan Avenue Problem Solving (LAPS)-Heuristic . Using the ADDIE model, results show the worksheet enhances critical thinking skills. The validity obtained from the material expert is 92% and based on the media expert is 85.4%. Also, the percentage of practicality is 92.9% and is included in the practical category. Implementation of learning with the application of student digital worksheets Effectiveness was demonstrated with 86.67% of students meeting learning completeness, and a medium improvement in critical thinking skills (gain score: 0.639). From the collected data, it is concluded that the Logan Avenue Problem Solving (LAPS)-Heuristic learning model developed meets the qualifications of valid, practical, and effective.

This research is based on the development of 21st century learning, where PowerPoint is one of the applications that support learning with attractive designs. This research is a type of R&D development research with the ADDIE model as the development model. The research population was class II students, with a sample of 10 students from SDN Gempolkerep. The data analysis technique used is the Likert Scale. Flat shape material is introduced at the low grade level, and in this product, the material is associated with local culture, especially the culture in Mojokerto, East Java, which is adjacent to this research area. The results showed that the interactive Flat Math media had been tested for its feasibility and declared fit for use. The validation results of media experts get a percentage of 75% which indicates eligibility, while the results of the validation of material experts get a percentage of 86% which indicates very feasible qualifications. Linguist validation also shows decent results with a percentage of 76%. The average questionnaire results from student respondents show a percentage of 80.4% which indicates that this media is very feasible to use. In addition, the teacher's assessment also gave a percentage of 82%. Based on the data analysis, it can be concluded that Flat Math interactive media is appropriate for use in supporting learning in flat shape material.

This study aims to determine students' responses to the Biology E-Module integrated with Imtaq values ​​in the Muscle material that was developed. This study is a development study using the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). This study is limited to the development stage. Determination of the sample using purposive sampling techniques, and the number of samples is 30 students from each of 10 schools, namely SMAN 3 Teluk Meranti, SMAN 1 Pelalawan, and SMA PGRI Pekanbaru. Data collection using student response sheets, Data analysis techniques using descriptive techniques. The results of the study obtained an average student response from three schools of 91.55% (very good category).

Education is a process carried out to change the mindset and behavior of humans into individuals who have good character, insight, and quality in order to become individuals with dignity. The development of an increasingly advanced era demands that the learning process in schools use technology as a means of supporting learning activities, for example in the use of learning media. One of the learning media that utilizes current technological developments is Canva. This article aims to describe the application of Canva media as a learning medium to examine the structure and language of discussion texts in class IX H Junior High School 36 Semarang. The benefit of applying Canva as a learning medium for studying discussion text material is that students are more interested and find it easier to understand how to study the structure and language rules of discussion texts.  

This research aims to develop teaching materials using Articulate storyline 3 media that are valid, practical and effective. The use of technology in today's developments in the world of education is required to be able to develop approaches to learning. by utilizing IT technology which is one of the important factors that might be able to provide faster knowledge transformation for students.  The results of the research on the development of the learning media developed obtained a level of validity in the very valid category. The results of the expert response questionnaire showed that the learning media was very practical with the results of the teacher response questionnaire showing a percentage of material practice by material experts of 93.7%. while the results of instrument validation by language experts were 86.1%. The results of media effectiveness show very effective learning outcomes with a percentage of 83.3%. Thus the learning media developed is declared valid, practical, effective and worthy of development.”

This study aims to examine the effectiveness of the Problem Solving learning model in improving the mathematical critical thinking ability of elementary school students. Through the Systematic Literature Review approach, this study analyzes a number of relevant studies. The results of the study show that the Problem Solving model has significant potential in improving students' critical thinking skills. This model encourages students to be actively involved in the problem-solving process, relate mathematical concepts to real life, and stimulate creativity. However, the implementation of this model requires careful planning, support from various parties, and teacher competency development. Further research is suggested to delve deeper into the factors that affect the successful implementation of the Problem Solving model, as well as develop more specific instruments to measure students' critical thinking skills.

The purpose of this research is to explain the process of development, produce the product, and explain the effectiveness of the learner's work sheet (LKPD) assisted by the application of quizizz in the short story text in the students of the X class of Private Catholic High School 2 Kabanjahe. This type of research is research and development (R&D) with research design ADDIE development model consists of 4 main stages: Analysis, Design, Develop, Implementation, and Evaluation. Data collection techniques are the lifts given to media experts, material experts, and pupils. The test subject is limited to students/I grade XI IPS 1 of 32 people. Data analysis techniques are quantitative descriptive of material experts, media experts and student respondents. The results of the validation of the expert of the material were 93.1, of the media expert was 96.73, and the student response was 91.98. The evaluation of LKPD's eligibility assessment of the application of quizizz on short story material for eleventh grade students by the experts of the materials, the media experts and the students obtained a total ratio of 93.92 who entered the category was very good. The result of this study was LKDP with the help of the quizizz application of short story materials for eleventennial students. Recommendations for further research are expected to develop LKPP by using other applications with broader and better material.

In the ever-evolving landscape of education, the importance of effective lesson planning cannot be overstated. As the cornerstone of successful teaching and learning, lesson plans serve as the roadmap that guides educators through the complex process of imparting knowledge and skills to their students. This study aims to delve into the intricacies of lesson planning, with a particular focus on strategies for creating effective lesson plans, the steps involved in their development, and methods to enhance students' English competence. This research is using qualitative research method by using interview, observation, and collecting lesson plan from english teacher. The setting for this research study is in junior high school. The Research participants is student of junior high school 2 ligung for grade 7 and 8. This research is using observation, interview, and collecting lesson plan from teacher as research instrument. From the researcher analysis English  teacher strategy to effective lesson plan is first the teacher must see the condition of the class and the condition of the child and choose simple and fun material. and determine the title of the material to be taught and required time allocation. On making lesson plan teacher can determine the material that want to be taught and then write time allocation for the lesson plan and decide what class and school to be written in lesson plan. Then teacher can write learning objectives learning outcomes and assessment of learning outcomes.