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Students' success in mastering Natural and Social Sciences competencies is often hampered by misconceptions that go undetected by teachers. Misunderstandings of basic ecosystem concepts risk hindering mastery of more complex material at the next level. This study aims to analyze students' misconceptions on ecosystems using a more accurate diagnostic instrument than conventional tests. This study was conducted at Growong Kidul 02 elementary school using a quantitative descriptive approach. The main instrument used was the Four Tier Diagnostic Test, designed to measure students' answers, their level of confidence in their answers, their reasons, and their level of confidence in their reasons. The results revealed that the use of the four-tier diagnostic test effectively differentiated students' understanding categories between those who understood the concept, those who did not understand it, and those who had misconceptions. Based on the analysis, a significant prevalence of misconceptions was found in the indicators of interactions between ecosystem components and energy flow. These findings prove that the four-tier diagnostic method provides more detailed information about students' cognitive structure than conventional multiple-choice tests. The implications of this research emphasize the importance for educators of implementing regular diagnostic assessments as a foundation for designing appropriate remedial learning strategies. By identifying the root causes of misconceptions, teachers can provide more targeted instructional interventions to optimally improve students' conceptual understanding.  

This study aims to examine the application of interactive multimedia in improving students' understanding of the concept of science and natural sciences on living things in grade III of elementary school. The method used is a literature study by analyzing various scientific journals, articles, and related documents. Data analysis was carried out using the Miles and Huberman model which includes data reduction, data presentation, and drawing conclusions. The results of the study indicate that interactive multimedia makes a significant contribution in helping students understand abstract living things. This media presents information visually and verbally through images, sound, video, and animation, thereby increasing student involvement both cognitively and emotionally. The use of interactive multimedia also encourages active and scientific learning approaches such as observing, asking, and trying, which are in accordance with the cognitive development stage of elementary school students. Various studies have shown that the use of interactive multimedia improves learning outcomes by up to 25% compared to conventional methods. The main obstacle in its implementation is the limited facilities and ability of teachers to operate technology, but this can be overcome with training and support from various parties. In conclusion, interactive multimedia is effective as a learning aid to strengthen the understanding of science and natural sciences concepts, and is very relevant to the demands of 21st century learning which requires innovation, collaboration, and optimal use of technology in the classroom.

This study aims to describe the application of the Project Based Learning (PJBL) learning model in improving the understanding of the concept of changes in the state of matter in Elementary School students. The background of this study is based on the low understanding of students on the material of changes in the state of matter, which can have an impact on the weak mastery of scientific concepts as a whole. The method used is qualitative research with a library research approach, where data is collected through analysis of various scientific literature, journals, and relevant academic sources. The results of the study indicate that PJBL is a learning model that emphasizes the active involvement of students in real projects, from designing, implementing, to presenting the results. The application of PJBL in the topic of changes in the state of matter encourages students to experience scientific processes such as melting, evaporating, freezing, and condensing directly through simple experiments. PJBL not only improves students' conceptual understanding, but also develops science process skills, critical thinking, collaboration, communication, and responsibility. In its implementation, PJBL follows certain stages starting from determining essential questions to reflection. Despite facing several challenges such as limited time, facilities, and teacher readiness, solutions can be sought through effective planning and professional training. Thus, PJBL has proven to be the right approach in improving the quality of science learning in elementary schools, especially in strengthening students' understanding of the concept of changes in the state of objects in a comprehensive and meaningful manner.

Learning Social Sciences (IPS) in Indonesia is still dominated by conventional methods based on memorization, so students often have difficulty connecting material with real life. Various studies have proposed learning innovations, but their implementation is still limited and poorly evaluated in the context of Merdeka Belajar. This research focuses on the implementation of social studies learning innovations at SDS Islam Ulul Albab which combines the role play method, the Teams Games Tournament (TGT) type cooperative learning model, and the use of audiovisual technology through Smart TV. The purpose of this study is to analyze the effectiveness of innovative methods in improving students' conceptual understanding without having to memorize. Using a qualitative approach with a field research method, data was collected through observation, interviews, and document analysis. The results showed that the role-playing method helped students understand social studies material through hands-on experience, while the TGT model increased students' participation and learning motivation through fun academic competition. In addition, the use of audiovisuals provides a more interesting learning experience and makes it easier for students to understand abstract social studies concepts. In conclusion, this learning innovation is effective in improving students' understanding conceptually, aligns with the principles of Merdeka Belajar, and has the potential to become a learning model that can be used to improve students' understanding of social studies.    

This article aims to explore the importance of contextual learning in improving elementary students' understanding of scientific concepts through a literature review method. The analysis of various sources reveals that the contextual approach enhances students’ learning motivation, active engagement, and conceptual understanding. Learning linked to everyday experiences allows students to construct deeper and more sustainable meanings. Moreover, real-world contexts help develop students' critical thinking and problem-solving skills. Literature studies indicate that integrating contextual approaches into science learning creates a more meaningful and enjoyable learning environment. Previous research also demonstrates improved student achievement in science when contextual learning is applied consistently and systematically. Therefore, it is recommended that teachers design instructional strategies based on local and relevant contexts. In conclusion, contextual learning significantly contributes to enhancing elementary students' understanding of science concepts and deserves to be a primary approach in the basic education curriculum.

The Merdeka Curriculum is a new educational framework in Indonesia that emphasizes student-centered learning, flexibility, and contextual understanding. This literature review aims to explore the implementation of the Merdeka Curriculum in the teaching of Natural and Social Sciences (IPAS) at the elementary school level. Several studies show that project-based learning approaches can enhance students' critical thinking and collaboration skills. However, challenges such as limited teaching resources, lack of teacher readiness, and misunderstanding of the curriculum structure are still prevalent. This review also identifies several efforts made to address these issues, including continuous professional development for teachers, collaborative learning communities, and school leadership support. The findings suggest that successful implementation of the Merdeka Curriculum in IPAS requires a comprehensive and collaborative effort from educators and stakeholders.

Mastery of science and technology is a must in facing the era of globalization. This requires various parties to be able to develop capabilities related to the development of capabilities in the field of technology. In the field of education, one of the educational breakthroughs in Indonesia that seeks to develop humans who can create a science and technology-based economy is STEAM (Science, Technology, Engineering, Arts, and Mathematics) learning. This study aims to describe STEAM as an alternative to learning mathematics in SD in the 21st century. This study uses a literature review method. The library study method is a critical study of the discussion of a topic that has been written by researchers or scientists in various sources in the form of books, journals, ebooks, or other scientific articles. The results of this study indicate that it is very important to use learning methods and media in the world of education to support teaching and learning activities, especially at the SD level. STEAM is one of the methods that can be used in learning but it is undeniable that this method cannot be applied in all school circles. Schools that have been able to use this method are those that are well-coordinated. Therefore, we really hope that this STEAM method can be implemented in all school circles which also indicates that our education is developing to be better every day.

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.

Natural Sciences (IPA) are the knowledge of nature, including living things, dead objects, and processes that occur around it. Natural science is a branch of science that is very broad and includes physics, chemistry, biology, and the science of Earth and Space. This study aims to explore the importance of natural science (IPA) in basic education, focusing on developing scientific skills and understanding of natural phenomena. The method used in this study is descriptive qualitative. This approach aims to describe the phenomena that occur in science learning and analyze their effectiveness in increasing student understanding. The results showed that IPA learning has an important role in student daily lives. With an interdisciplinary approach that includes physics, chemistry, biology, and earth and space science, from the four IPA fields allow students to develop critical thinking skills and problem solving needed to face global challenges. Thus, natural science is very important in everyday life and also in understanding the relationship between humans and nature. Through a deep understanding of natural science, we can better appreciate the beauty of nature and play an active role in maintaining its sustainability for future generations.