This research is motivated by the low learning outcomes of students and the lack of student learning outcomes in learning and the use of learning methods that are less influential in improving student learning outcomes in paying attention to the material presented by the teacher. This study aims to determine and describe how efforts to improve the learning outcomes of fourth-grade students at SDK WESOER in the science subject about Energy and its changes by using the Experimental Method. This research is a classroom action research (CAR), the data collection instruments used are observation, interviews, documentation, and tests. This research consists of 2 cycles, each cycle consisting of 1 meeting. Each cycle consists of the planning, observation, implementation, and reflection stages. The results of the study indicate that the use of the experimental method can improve student learning outcomes on the sub-theme of energy and its changes in fourth grade at SDK Wesoer. Before conducting the research, researchers conducted observations. During the learning process, the teacher did not use the experimental method on the material of energy and its changes, so from 25 students only 8 students got a complete score reaching the KKM with a percentage of 32%, and 17 students got an incomplete score not reaching the KKM with a percentage of 68%. After conducting research using the experimental method on energy and its transformations, in Cycle I, 14 students achieved a passing grade and achieved the Minimum Completion Minimum (KKM) with a percentage of 56%, while 11 students received an incomplete grade, failing to achieve the KKM with a percentage of 44%. In Cycle II, the learning outcomes improved further, with 20 students achieving a passing grade with a percentage of 80%, and 5 students receiving an incomplete grade with a percentage of 20%.

Pedada leaves (Sonneratia caseolaris), a type of mangrove plant that grows in tropical and subtropical coastal areas, have high ecological and pharmacological value. In addition to functioning as coastal protection from abrasion and seawater intrusion, this plant is also known to contain various secondary metabolite compounds such as flavonoids, tannins, saponins, and alkaloids. These compounds have been widely reported to have important biological activities, one of which is as an antimicrobial agent. This study aims to identify the effectiveness of pedada leaf ethanol extract in inhibiting the growth of pathogenic microorganisms, especially bacteria that cause infections. The extraction process was carried out using 96% ethanol solvent through the maceration method, namely soaking the material in the solvent for a certain time to optimally obtain active compounds. The obtained extract was then tested for its antimicrobial activity using the disc diffusion method against test bacteria, both Gram-positive and Gram-negative. The inhibition zone formed around the disc was measured as an indicator of the antibacterial effectiveness of the extract. The results showed that pedada leaf extract was able to produce inhibition zones with varying diameters depending on the concentration used. The higher the extract concentration, the larger the diameter of the inhibition zone formed. This indicates a positive relationship between extract concentration and its antibacterial strength. This activity is believed to originate from the ability of compounds such as flavonoids and tannins to damage bacterial cell walls or disrupt microbial metabolic processes. This study provides initial evidence that pedada leaves have potential as an environmentally friendly and sustainable source of natural antibacterials. This potential is highly relevant in efforts to develop alternative antibacterial materials based on local plants, especially amidst increasing bacterial resistance to synthetic antibiotics.

This study aims to describe the role of school management in developing local culture-based education. Local culture-based education is a learning approach that integrates local cultural values as a contextual, relevant, and meaningful learning resource for students. This study used a qualitative approach with a case study method in an elementary school that has successfully implemented local culture comprehensively in various aspects of learning activities. Data were collected through in-depth interviews, observations, and documentation studies. The results show that school management plays a strategic role in formulating policies, supporting culture-based learning programs, and establishing partnerships with the community for cultural preservation. The principal, teachers, and education staff actively integrate local cultural elements into the curriculum, extracurricular activities, and the learning environment. Despite facing challenges such as limited resources and lack of training for educators, this school is able to demonstrate a strong and consistent commitment to making local culture the foundation for character and identity formation for students. This study confirms that collaboration between stakeholders is key to success in realizing education rooted in local wisdom. By involving parents and the community, schools can create a more inclusive and supportive learning environment. These findings demonstrate that community involvement in the educational process not only enriches students' learning experiences but also strengthens their sense of belonging to local culture. This research significantly contributes to the development of educational models that focus not only on academic aspects but also on the development of student character and identity rooted in local cultural values. Through this approach, it is hoped that students will grow into individuals who are not only academically intelligent but also have an awareness and appreciation for their own culture.

This study aims to determine the feasibility and impact of virtual laboratories in learning the material of innovation in biological technology (biotechnology) for high school students in grade X. The feasibility assessment was carried out by three expert validators using a questionnaire instrument that measured aspects of material, media, and language and based on readability tests by teachers and students. The results of the study showed that the percentage of validity of the Virtual Laboratory from material experts was 95%, media experts 83%, language experts 90% with the third category being "Very Feasible". The results of the readability test from teachers obtained a percentage of 96% while the results of the readability test from students obtained a percentage of 99%. These results indicate that the Virtual Laboratory is Feasible and Practical to be used for biology learning, especially biotechnology material. The results of the teacher response test on the use of Virtual Laboratory showed a percentage of 95% while the results of the student response test were 75%. The results of the T test showed that Virtual Laboratory had a significant effect on students' conceptual understanding with a significance of 0.001. These results indicate that Virtual Laboratory is effective in improving students' conceptual understanding, especially in biotechnology material.