1. Production techniques and materials selection for components like nutcracker parts, handles, and kitchen items manufactured using methods like case hardening, compression molding, and profile forming, with scalability considerations for mass production. 2. Material properties such as plasticity and toughness, workshop methods to compare toughness, and the application of Young’s Modulus of elasticity in product design. 3. Electronic circuit design including components like resistors and relays, truth table construction, and explanations of circuit operation. Structural failure analysis due to twisting and buckling, and preventative design considerations. 4. Influence of fashion and style on product design and consumer trends, methods for conducting consumer research, and the analysis of existing and historical product designs for innovation. 5. Packaging design importance for consumer appeal and manufacturing efficiency, highlighting practical implications, user convenience, and branding. 6. Design development for specific scenarios like a rocking toy for children, a magnifying glass stand with lighting, and a biscuit range themed on outer space, incorporating assembly, usability, and promotional elements. 7. Orthographic and 3D visualizations, including development nets, intersecting geometries, and rendered drawings to demonstrate proposed solutions, addressing functional, aesthetic, and ergonomic requirements.