What term describes the act of showing how to do something or how something operates?

The term that best describes the act of showing how to do something or how something operates is "demonstration." A demonstration involves a live or recorded showcase that guides an audience through the process of performing a task or using a specific tool or technique. This method is often used in educational settings, training sessions, or even in product launches, where visual and practical examples enhance understanding.

In a demonstration, the focus is on actively illustrating each step, enabling observers to see the procedure in action. This tactile experience aids in retention and comprehension, making it a powerful teaching method. The other terms, while related to conveying information, do not encompass the active showing aspect inherent in a demonstration. For instance, a presentation might involve delivering information verbally or through visuals without necessarily performing the task or showing how something operates. Similarly, practical skill evolution and discussion lack the hands-on element that defines a demonstration.