reexamines the use of the word 'failure' when applied to tinkering and making in the classroom. I hear of too many teachers and youth leaders trying to teach that failure is OK in the tinkering process. But an F on a report card is not OK, as Sylvia points out.
What occurs in the making process is learning that things don't work quite as one predicted they would. That's successfully increasing one's knowledge about the world, not failing at anything.