GWEN IFILL:

Next tonight: another in our series on Rethinking College.

Are the ivory towers of higher education delivering their product, the much sought-after sheepskin, in an old-fashioned and inefficient way? We look at online technologies that could change colleges and universities.

Hari Sreenivasan is back with that.

They're handwriting on a tablet, so a white board that can handwrite on a tablet.