Here you have a documentary on the Swedish school system that might help you answer the question. Try to spot the differences between the way they learn in Sweden and the way you did it when you were their age. If you like it there is also part 2 and 3. Click on the picture to watch part 1. WORKSHEET
Intermediate Level Blog 
I don´t think so.They have a better method but they aren´t more intelligent than us.At the same time, I think that all countries adjust their timetable according their climate,sun hours,works,and fortunately we have a very warm climate.There get dark very early and our character and habits are differents.