Can unschooling be structured?
It depends on what you mean by structure. Imposing external structure onto the learner, by specifying materials and methods, is not unschooling. A person creating structure to suit his or her own purpose, that is unschooling. Some people are by nature methodical, and we want our children to respect and work with their own internal rhythms. Our job as parent is to help them create what they need. For example, it is entirely possible that one child will learn everything in a more relaxed, free flowing way, except for one subject- perhaps history. With history that child may want a time line and a access to materials in chronological order. If it works for the child and is created at the behest of the child, then structured, methodical learning is also unschooling.