What are three-dimensional aids used for demonstrating skills and techniques called?

Three-dimensional aids used for demonstrating skills and techniques are called models. In the context of training and education, models serve as tangible representations that can effectively illustrate concepts, processes, or physical structures. They are particularly valuable in fields like cosmetology, where students can visually and physically engage with the materials or techniques they are learning.

Models allow instructors to demonstrate techniques in a way that is both visually clear and easy for students to comprehend. For example, a hairdressing model might represent different haircuts or styling techniques, enabling students to see exactly how the techniques can be executed.

While other terms, such as mannequins or visual aids, may seem similar, they do not encompass the exact nuance of the term "models." Mannequins specifically refer to human-like figures used in fashion and beauty training but can be limited in function compared to the broader application of models. Visual aids encompass a wider range of teaching tools, including charts and diagrams, but do not necessarily emphasize the three-dimensional aspect that models provide.