OK, now this is certainly something new, at least something that I've never come across before. I seen plenty of times student learn physics by building bridges, going to amusement parks, tossing water balloons, etc.. but never by building a mini-golf course! How creative!
These students learned a lot about Newton's laws from this project. So whoever thought of this deserves a lot of credit. Now I hope that no one gets any ideas about teaching the kids about statistics and probabilities by making them build a casino!