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Teachers’ managerial competence plays a crucial role in ensuring effective and relevant learning, particularly in vocational education. Teachers are required not only to master subject matter but also to plan, manage, and evaluate learning through well-structured and contextual learning tools. This Community Service activity aimed to strengthen teachers’ managerial competence through training on the development of learning tools using a deep learning approach at SMK Muhammadiyah 2 Tangerang Selatan. The implementation method included conceptual material delivery, practical training, and mentoring in designing learning tools. The deep learning approach was applied to encourage learning designs that emphasize deep understanding, critical and reflective thinking, and alignment with workplace demands. The results showed an improvement in teachers’ understanding and skills in developing more systematic, innovative, and adaptive learning tools aligned with 21st-century competencies. This activity contributed positively to strengthening teachers’ roles as learning managers and supporting the improvement of learning quality in vocational schools.

The construction industry is one of the fields where the implementation of Occupational Safety and Health (K3) is still not optimal, as evidenced by the still high number of work accidents. Efforts to increase this awareness can be done early on through education and training, one of which is through Vocational High Schools (SMK). In general, students are still not aware of the possibility of work accidents. Providing K3 training from an early age can help students develop the knowledge, attitudes, and behaviors that will be needed in the workplace later. The purpose of this program is to provide knowledge and skills to students of SMKN 1 Kemlagi, Mojokerto Regency regarding the basics of construction K3. The methods used to educate students through K3 learning include lectures and socialization, as well as evaluation through pre- and post-tests. Overall, K3 education activities are able to improve the understanding of students in the Building Design Modeling and Information Department of all topics discussed, including risk control strategies, preventing and dealing with fires in the work area, recognizing personal protective equipment.

The increasing trend of working from home since the COVID-19 pandemic has introduced new occupational health challenges, particularly regarding ergonomics. This study aimed to improve ergonomic awareness through structured education on proper work postures for home-based workers. Using a one-group pretest-posttest design, the research evaluated the effectiveness of educational interventions based on behavior change theories. Results demonstrated that interventions using the Trans-Theoretical Model (TTM) reduced Rapid Office Strain Assessment (ROSA) scores from 5.65 to 3.95 and decreased forward head posture by 9°. Similarly, participatory ergonomic approaches increased straight back posture from 59% to 75% of work time, with a 98% participant satisfaction rate. Educational strategies combining short workplace demonstrations, reminder media, and physical exercises proved more effective than conventional training methods. Theory-based weekly training sessions reduced the proportion of high-risk workers from 60% to 21% within three months. The study concludes that structured work posture education based on behavior change theories effectively enhances ergonomic awareness among home-based workers and significantly reduces health risks associated with poor posture.