Today I learned about a couple theories and some interesting research on numerical cognition in children. And I thoroughly enjoyed debunking Piaget! See www.learningnerd.com/children-number-sense/ for related links, references, transcript, and all that. Media Credits: - Conservation task by jenningh www.youtube.com/watch?v=YtLEWVu815o&t=1m29s - Conservation of number task by Shena Kiper www.youtube.com/watch?v=19qM4OoV59U - Preoperational Conservation of Number (5 yrs old) by angelface1030 www.youtube.com/watch?v=Wo7hTmmUsys - Piaget on Piaget: The Epistemology of Jean Piaget (1977) by Yale University Films www.youtube.com/watch?v=I1JWr4G8YLM - "New Math" by Tom Lehrer (Listen to the whole song: www.youtube.com/watch?v=UIKGV2cTgqA) - Graph for candy experiment McGarrigle, J., & M. Donaldson. (1974). Conservation Accidents. Cognition, 3, 341-350 - The Infant and Child Cognition Lab, Boston College by Boston College www.youtube.com/watch?v=3AuHrp8hPs0 - Magic show experiment diagram Wynn, K. (1992). Addition and Subtraction by Human Infants. Nature, 358, 749-750 - Stimuli videos courtesy of Dr. Koleen McCrink bc.barnard.columbia.edu/~kmccrink/Koleen_McCrink/multimedia.html McCrink, K. & Wynn, K. (2004). Large-Number Addition and Subtraction by 9-Month-Old Infants. Psychological Science, 15, 776-781 - Video game sound effect by Daniel Hjerth (sapht on FreeSound.org) Related links, references, transcript, credits: www.learningnerd.com/children-number-sense/