This study aims to analyze the use of technology, especially QR Code, in mathematics learning in elementary schools. Using a literature review method, data was collected from various relevant national and international journals. The results of the study indicate that the integration of QR Code in mathematics learning has proven effective in improving student learning outcomes, interest, and engagement. QR Code is used in various forms of media, such as Student Worksheets (LKS), comics, flash cards, posters, and interactive videos, which support contextual, visual, and independent learning. The application of QR Code also helps students understand abstract concepts, improves numeracy and spatial skills, and supports the development of 21st century skills. This study concludes that the use of QR Code is an innovative strategy and is feasible to be applied in mathematics learning at the elementary school level.
 
 

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.

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 research aims to analyze the types of errors made by fifth grade elementary school students in solving mathematical problems. This research uses a qualitative descriptive method with a case study approach. The research subjects were 25 students who were selected based on the criteria of various academic abilities and difficulties in problem solving. Data was collected through mathematical problem solving tests, semi-structured interviews, and observations. The research results showed that students' errors in solving mathematical problems were divided into three types, namely: conceptual errors (44%), procedural errors (36%), and calculation errors (20%). Conceptual errors occur due to students' lack of understanding of basic mathematical principles, such as fractional number operations. Procedural errors are caused by students' ignorance in determining systematic steps to solve problems. Meanwhile, calculation errors arise due to students' low accuracy and concentration. This research recommends using a problem-based learning approach and interactive media to increase students' understanding of concepts. Apart from that, providing varied practice questions and feedback can help students correct their mistakes. Thus, students' mathematical problem solving abilities are expected to increase significantly.

The research aims to examine the effectiveness of the STEM-based approach in 21st-century mathematics learning. The STEM-based approach integrates four main disciplines science, technology, engineering, and mathematics into the learning process to enhance critical thinking and problem-solving skills. The STEM approach is highly relevant to developing 21st-century competencies in mathematics education as both focus on the skills required to address complex and dynamic global challenges, such as critical thinking, problem-solving, creativity, communication, collaboration, and digital literacy. The research method employed is a literature review, analyzing relevant theories and previous studies on the topic. The results indicate that the STEM approach can improve the effectiveness of 21st-century mathematics learning, such as enhancing students' technological development skills, analytical abilities, creativity, innovation, and the ability to express ideas and formulate problems. The STEM approach also stimulates students to meet the demands of 21st-century mathematics learning, which emphasizes critical and problem-solving skills leading to critical, creative, lateral, and systemic thinking abilities.