The practical design workshop helps teenagers see how simple geometric shapes give birth to objects, ideas, and entire artistic worlds. Here, theory is immediately tested by hands: participants assemble, try, make mistakes, and notice how material, form, and function begin to speak the same language. This workshop is suitable for teenagers who are interested in understanding how design works not at the level of beautiful pictures, but through the logic of form, material, and ideas. The focus is on geometry as a language of design. It is from simple elements that objects are born, which change everyday life, influence habits, and over time begin to be perceived as part of the norm. Such a conversation helps to see that behind every chair, lamp, or pen lies not an accidental appearance, but a chain of decisions, disputes, experiments, and searches. The practical format here is especially important. Participants do not just listen to explanations, but move on to hands-on work: they assemble structures, check how volumes, lines, and planes interact, and learn to notice how form affects the perception of an object. In this process, a mistake becomes not a failure, but part of the research. This is how design thinking works: through trial, reassembly, clarification, and a new perspective on the task. Where to go with a child in Nizhny Novgorod, look for it on our website.