Originally Posted by ColinsMum
You must know the famous experiment that (my interpretation!) demolishes Piaget's ideas about when conservation of number develops by showing that children can answer correctly very much earlier if it's a "naughty teddybear" rather than the experimenter who stretches out one of the lines?

No, but I've been out of psych for 20+ years, and wasn't a huge fan of Piaget back then, so I don't particularly care. smile

Yes, I think that she assumed that I was asking the second question, since it was clear from her expression that she was wondering what sort of gibberish I was spouting.