Thinking and communicating in 3D is taught in schools via the Mathematics syllabus, and is not just essential for design, research shows that developing these 3D thinking skills promotes success across all STEAM fields and related trades.
During Design Thinking & STEM challenges we are asking students to use their STEM knowledge to creatively solve a problem. The trick is a design cannot just be a thought, it must be represented in some material form. This is where drawing mathematically becomes an important skill for communicating ideas. In engineering design this might be a sketch, working drawing, plans and models.