How does our knowledge grow? It turns out there are some different ideas about that. Schemas, Four-Stage Theory of Cognitive Development, and Vygotsky's Theory of Scaffolding all play different roles but the basic idea is that children think about things very differently than adults. Hank explains in today's episode of Crash Course Psychology. Want more videos about psychology? Check out our sister channel SciShow Psych at null! -- Chapters: Introduction: Cognitive Development 00:00 Maturation 1:23 Jean Piaget's Theory of Cognitive Development 1:45 Schemas 2:39 Assimilation & Accommodation 3:03 Sensorimotor Stage of Cognitive Development 3:37 Preoperational Stage of Cognitive Development 4:37 Concrete Operational Stage of Cognitive Development 6:40 Formal Operational Stage of Cognitive Development 7:06 Reception of Piaget's Four-Step Model 7:20 Vygotsky's Theory of Scaffolding 7:48 Review & Credits 8:58 -- Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse Want to find Crash Course elsewhere on the internet? Facebook - http://www.facebook.com/YouTubeCrashCourse Twitter - http://www.twitter.com/TheCrashCourse Instagram - https://www.instagram.com/thecrashcourse/ CC Kids: null