Francoise
Francoise Herrmann
fherrmann who-is-at igc.org
PS. Piagetian conservation task in "going shopping": an anecdote.
Give a child a nickel and a dime (US currency) and ask which is
more. It is the nickel of course because the coin is bigger.
And don't try to explain otherwise, because how could a dime
be more that a nickel when it is smaller.