China was to reform school curriculum  to ease the burden put on children by pushy teachers and parents eager to see them succeed in an increasingly competitive society. Chinese pupils were suffering from poor eyesight in increasing numbers and at a younger age. Tiring homework and increasing exam pressure were to blame. The primary reason is the traditional East Asian culture in which all parents want their kids to become dragons or and phoenixes. Too much emphasis is placed on "diplomas"  and exam scores. That was  _ by the fact thatprefix = st1 /Chinais a developing nation with 1.3 billion people and its one-child policy. Yuan, a government staff, said, "The competition in employment is fierce and that pressure has been cascaded back to schools. Every parent expects his child to outperform peers. " The Education Ministry would cut the difficulty of the textbooks, reduce homework, make classes more interesting and limit the number of tests. Another problem the government had to deal with was the education of 13 million rural children who swarmed into the cities with their parents working as migrant workers. More than 100 million peasants across the country migrate to the booming cities every year for manual labor and small-time businesses. But policy hurdles for them to settle in the cities abound, including those that prevent their children from receiving a good education. An estimated 23 million "left-behind children" of migrant workers stay in the countryside "The government has ordered urban public schools to open up to the 7. 88 million  migrant children of school age," Yuan said, adding private schools are also allowed to accommodate  some of them. What's the main idea of this passage?
China will reduce burden on school children. Left-behind children in the countryside receive no education. Children of migrant workers will have a better education. The education of the migrant children receives attention.