Drawing can help us organize our thoughts in flow charts, organizational grids, or other patterns. Drawing is used to design buildings or clothing or describe chemical reactions. Having a mindset that drawing must produce "art" can inhibit us from getting started.
In a TEDxTUM talk, How drawing helps you think, by Ralph Ammer, (Youtube), we are encouraged to look at drawing in a more open way - it helps us imagine and be more intuitive about seeing patterns, and it can help us communicate complex ideas. Grab a pencil and join in!