Something's missing at the new Sun Valley Charter High School in Ramona, Calif. There are no textbooks, only computers.
That means students there don't have to lug heavy backpacksa familiar ritual for many young Americans who carry books from class to class and home at day's end.
Growing back pain complaints prompted a new California law limiting textbook weight. But some say assignments drawn from the internet, "eBooks," or CD-ROMs will be the real solution.
"It's not the wave of the future; it's the wave of the...