<![CDATA[These observations were carried out in class IV of SDN Kembangan Selatan 03, totaling 26 students in the odd semester of the 2023/2024 academic year. These observations will use classroom action research (PTK) methodology in two stages. The aim of classroom action research is to increase teaching and learning outcomes in science and science subjects, especially in the field of energy, through demonstration methods. In collecting files, observation papers on students' teaching and learning activities, observation papers on teaching activities by an educator, and question sheets are used to increase students' learning outcomes in the material of heat energy and sound energy. This research was conducted jointly by IVB researchers and teachers. The process of collecting files is seen from repetition and observation. Obtaining file collection tools is done by making repetitions and observation paper. This gain in knowledge can be seen in the use of demonstration designs in energy material which has increased the learning gains in science and science subjects for class IV students at SDN Kembangan Selatan 03. The findings of process I show that students' knowledge acquisition is complete up to a score of 59.62 and a completion level of 58%. However, in the observation process of stage I, the percentage of student activities was 70%. Next, in the stage II process, students' teaching and learning gains increased by 92% with a gain of 83.31. The average percentage of student activity observations in Cycle II also increased to 87.5%.]]>
