Sorry, in 'Primary education' and all!
DS2's Cubs are working towards the above badge. You have to, amongst other things, take in your collection of whatever and 'be prepared to talk about it', then at a later date, bring in the enlarged collection as you've added to it.
Me, coming over all middle class, suggested his static, non-growing collection of crystals/rocks but the simple fact is, he is far more interested in his Force Attax, collects them avidly, does extra chores to earn pocket money to buy them, trades with enthusiasm and has a sure and definite hierarchy in his display. To me this does demonstrate the spirit of the badge, BUT- if you were Akela, would you expect stamps, coins and fossils in 2011?