Spiral learning is a natural way to learn, and was explicitly used by Cherokee Indians in the Americas long before European culture arrived. The technique is probably even much older, and has regained acceptance in recent time. The spiral technique is in contrast to a linear approach, which attempts to provide all the necessary information in a logical argument.
With “Spiral Learning” most key concepts are introduced early, but only lightly touched on.
Once the big picture is understood, the key concepts are revisited with a little more depth.
As the same concepts are examined and used, again...