At the same time, the number of students enrolled in computer science classes has surged between 30% and 50%, professors said.

WSJ: Students Shift to Computer Science

Here are some more items for young girls, from books and electronic LEGOs to free iPad games, created by engineers who want to help change the ratio in math, science and computer classes everywhere.

FORBES: Connect

Zuckerberg, who was a psychology major though he took mostly computer science classes, recounted one of the ways he hacked his studying while he was at Harvard.

FORBES: Mark Zuckerberg: Don't Just Start A Company, Do Something Fundamental