I've never played, and it's rather silly/jokey compared to the norm, but one of pathfinder's free modules (that they made for free rpg day) is the we be goblins module for lvl 1. I've heard good things about it.
http://paizo.com/products/btpy8j5w?P...-We-Be-Goblins
there's a somewhat more normal adventure here:
http://paizo.com/products/btpy82r0?G...lows-Last-Hope
I'm not familiar with it at all; but it was made for free rpg day, which is to help intro people to things.
your group would probably be better off learning 5th ed than pathfinder though. I'm not familiar enough with that to suggest anything for it.