"In schools, Internet is critical for enabling something we know leads to better results: personalized learning," Zuckerberg said, adding that  "Every classroom should have fast Internet access."

Most schools in the US are connected to the Internet, but fewer than half have high-speed broadband connections, according to Zuckerberg. Last month, Zuckerberg and his doctor wife revealed plans to start a private school in a hardscrabble Silicon Valley town, mixing education with health care.

Zuckerberg voiced pride in his wife, Priscilla, for the plan to create 'The Primary School' in the working-class city of East Palo Alto. Chan works as a pediatrician and has also been a teacher, seeing first-hand how poor health hinders learning in classrooms, her husband said. In June of last year, Zuckerberg and Chan began pumping USD 120 million into San Francisco Bay Area schools.

More than five years ago Zuckerberg channeled $100 million to improve schools in the New Jersey city of Newark in an early foray into improving public education that got failing grades.