DEVELOPMENT OF A SUSTAINABLE EDUCATION-BASED TOFU INDUSTRY MANAGEMENT MODEL IN MAKASSAR CITY

Abstract The SOLID (Self-confidence, Opportunity, Learning of Technology, Initiative, and Decision) training model enhances vocational education in sustainable tofu industry waste management. Small-scale tofu industries generate significant liquid and solid waste yet lack the awareness and skills to manage it properly. Limited access to practical training has hindered the adoption of environmentally friendly technologies. This study designs and evaluates an experiential learning and problem-based training model to improve scientific literacy, technical skills, and innovation in the tofu industry. The Research and Development (R&D) approach used the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). Expert validation rated the model as highly valid (0.84) and very practical (81.9–85.2%). A one-group pretest-posttest study with 25 tofu industry participants showed a significant increase (p < 0.05) in knowledge, attitudes, and skills. The SOLID model proves to be more effective than conventional methods, emphasizing active participation, problem-solving, and hands-on practice. It fosters innovation in environmentally friendly waste management and should be integrated into industrial training curricula and vocational education. Implementing this model can develop a competent, innovative, and sustainability-focused workforce, contributing to small-scale industry efficiency and environmental conservation.