Teaching design courses is one of the educational fields that relies on a fundamental integration between theoretical knowledge and practical application. Separating these two aspects negatively affects the quality of the educational process and its outcomes. Design, by nature, is a creative intellectual activity grounded in theoretical foundations and realized through practical application aimed at producing visual and functional solutions that serve individuals and society. Therefore, examining the relationship between theory and practice in teaching design is essential, as it represents a complementary relationship that contributes to shaping the designer’s character and developing intellectual and creative abilities. Theory in design education provides the cognitive framework that equips students with essential concepts and organizing principles of design practice, such as composition principles, color theories, visual perception, visual communication, as well as the history of design and its various schools. This theoretical knowledge helps build design awareness, enabling students to understand the intellectual and aesthetic foundations of design work, analyze and critically evaluate artistic works, and connect design with its cultural, social, and functional contexts. In contrast, practical application represents the core through which theoretical concepts are transformed into tangible experience. Through hands-on practice, students learn how to apply theoretical rules to solve design problems, test ideas, and acquire the technical skills required for execution. Practice allows experimentation, trial and error, and refinement, which enhances effective learning, fosters creativity and innovation, and reinforces theoretical knowledge by making it clearer and more comprehensible. The main challenge in teaching design emerges when a disconnect occurs between theory and practice. Excessive focus on theory may result in abstract knowledge lacking practical applicability, while reliance on practice without a solid theoretical foundation may lead to random outcomes lacking intellectual depth and design awareness. Therefore, achieving a balance between theory and practice is a fundamental requirement for successful design education. The integrative relationship between theory and practice contributes to preparing designers who are capable of thinking and analyzing before execution and evaluating their work critically. Theory provides students with analytical tools and structured thinking, while practice enables them to transform ideas into concrete visual outcomes. Integrating both aspects within the educational process also enhances students’ ability to connect academic knowledge with labor market requirements and equips them to address contemporary design challenges with flexibility and competence. The role of the instructor is crucial in achieving this integration, as they are responsible for presenting theoretical concepts in a functional manner and directly linking them to practical exercises and design projects. This requires adopting modern teaching strategies such as learning by doing, project-based learning, and constructive critique, which strengthen interaction between students and course content. In conclusion, the relationship between theory and practice in teaching design is an inseparable and complementary one. Theory provides intellectual and cognitive depth, while practice adds creative and practical dimensions. Achieving a balance between the two is an educational necessity that contributes to preparing designers with knowledge, skills, and awareness, capable of producing designs that combine sound concepts with effective execution. This approach aligns with Sustainable Development Goal 4 (Quality Education) by enhancing the quality of creative education and empowering students with competencies needed for a sustainable future. Almustaqbal University, The First University in Iraq.