Sometimes kids learn more from failure (or at least not raging success) than they do from raging successes.
After it was all over, did you do what we in the business call a "debriefing," which is an analysis of how it went, what he'd do again and/or differently, and what he learned? That's where most of the learning really takes place in any experience.
If he has to put into words how the experience went and has to analyze what worked and what didn't and WHY, he might learn everything he needs to learn. Then the next time he has a big project, you can just remind him about this one.
Just a thought... (Said the former Girl Scout Leader trainer and college instructor.
)
