To determine how many unit angles a smaller angle of a small pattern block turns, we first need to clarify the context and definition of a "unit angle."
In geometry, a unit angle typically refers to a simple fraction of a full turn, which is 360 degrees. Common unit angles are 90 degrees (a quarter turn), 180 degrees (a half turn), and 120 degrees (one-third of a turn), among others.
If you have a specific "small pattern block" in mind, please provide the shape or angle measurements so I can give a more accurate calculation or explanation. Otherwise, the answer will depend on the specifics of the pattern block you are referring to.