Allowing learners to struggle will actually help them learn better, according to research on “productive failure” conducted by Manu Kapur, a researcher at the Learning Sciences Lab at the National Institute of Education of Singapore.
Absolutely, its the impasse where real learning takes places. Manu Kapur has a great presentation about this http://youtu.be/LnljG9I33KM
Needs more research.
See on blogs.kqed.org