This article is a reminder that, in a way, some things never change. The 'stickers' in question are things like the gold stars handed out four students to display somewhere (the fridge, the wall, the lunch box). They're the pre-internet version of badges. The gist of this article is that teachers should avoid the use of stickers, for two major reasons: first, because they are based on "assuming that the child has full control of his or her behaviour and could demonstrate the desired behaviour if they wanted to, but sometimes choose not to do so"; and second, because "when we incentivize behaviour, we run the risk of extinguishing pre-existing intrinsic motivation." Via Doug Peterson.