Unschooling is the idea that learning is an innate ability and that people truly learn what they need to learn, when they need to learn it. Schooling isn't about learning, it's about forcing facts and testing them, coercion, control, shame, and indoctrination into accepting an artifical hierarchy in society. The government decides what should be taught and when, with really no thought as to what is developmentally appropriate or actually valuable in a modern economy, let alone what a child wants to learn. Unschoolers reject the idea that children should learn certain things at certain times. So the idea that one of your daughters is not interested in learning is not true. She is just not interested in learning what you think is acceptable and appropriate. That is totally your decision and your right to decide that as her parent. In many places, homeschoolers are forced to teach and pass testing. But unschooling is not about what the parent or school arbitrarily wants, it's about what is best for the child which, if someone is unschooling, would be self directed authentic learning so the child grows into the person they want to be... as opposed to the regurgitating of information to get an A reward. In unschooling, there is no reward other than the learning itself and its benefits, which produces a lifelong learner and usually someone very very good at their chosen profession.