"One of the joys of parenthood is watching your children engage in an activity that they love—pretending to be their favorite superhero, building castles in the sand, or painting a picture of their family. They are completely immersed in the activity, lose track of time, and are not easily distracted. Psychologists refer to this as a state of 'flow.'
Activities that lead to a state of flow are often child-directed, meaning children take charge of their own learning by exploring topics that they choose and are personally meaningful to them. Child-directed learning environments motivate children to learn because they are engaging in an activity for the sake of the experience."