title: Introduction: reconceptualizing the nature of children's conceptual structures and their development in middle childhood.
authors.forename: R
authors.initials: R
authors.lastname: Case
mesh_terms: D002648:Child; D002657:Child Development; D003210:Concept Formation; D005260:Female; D006801:Humans; D008297:Male; D009483:Neuropsychological Tests; D011340:Problem Solving; D012016:Reference Values; D013850:Thinking