But What IS It?

Yet another in the never-ending list of studies that tell us what we all know already (namely, in this case, that children learn better when allowed to discover things for themselves ~ the problem here is that it's so much EASIER and QUICKER for adults/teachers to just EXPLAIN it to them than to LEAD them in the right direction, but don't get me started!): http://www.economist.com/node/18741484