Chinese parents are not afraid to dream big when it comes to their children's futures - talk of Yale, Harvard and other prestigious overseas universities can begin when the child is still in kindergarten.

Many can now afford to make such dreams a reality, which has led to a boom in demand for English language training and exam preparation courses.

According to the Ministry of Education's National Education Development Statistical Bulletin, the market is already worth about 30 billion yuan ($4.9 billion), and is growing at a rate of 15 percent year-on-year.