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Thirteen-year-old student Viviane Santos reads notes from her copybook during a class at a public school in the settlement of Tupa, in Xapuri, in the northern Brazilian state of Acre, some 3,100 km from Brasilia on March 17, 2008. - Tele-learning -- the use of videos as a teaching aid -- is utilized in schools across Acre, in the Amazon forest, to help overcome the tyranny of distance. The videos, which cover the entire primary school curriculum, play a key role in the education of 2,500 young schoolchildren of the state's rural areas. (Photo by EVARISTO SA / AFP) (Photo credit should read EVARISTO SA/AFP via Getty Images)

Thirteen-year-old student Viviane Santos reads notes from her copybook during a class at a public school in the settlement of Tupa, in Xapuri, in the northern Brazilian state of Acre, some 3,100 km from Brasilia on March 17, 2008. - Tele-learning -- the use of videos as a teaching aid -- is utilized in schools across Acre, in the Amazon forest, to help overcome the tyranny of distance. The videos, which cover the entire primary school curriculum, play a key role in the education of 2,500 young schoolchildren of the state's rural areas. (Photo by EVARISTO SA / AFP)        (Photo credit should read EVARISTO SA/AFP via Getty Images)