Piaget Keynote

Here are the slides from the Piaget keynote.  Because I don't have permission from the other parents to post videos of their children online, one of the clips isn't featured here.  However, I have substituted in a video of my son (age 6) who still clearly hasn't mastered the concept of conservation :) and my daughter (age 8) who has.

(my son clearly doesn't yet understand conservation)

(but my daughter clearly has mastered conservation and has reached the concrete operational stage!)

and, as a funny bonus, here's something from the Onion - what your life would be like if you didn't understand object permanence.

Ten Percent Of U.S. High School Students Graduating Without Basic Object Permanence Skills