Students of the Hejiabao Central Primary School read during a trial class for the leapfrog education model in Dangchang County, northwest China's Gansu Province, May 27, 2013. The program, aimed at exploring a new education model and starting from 2011, has been carried out in 101 classes of 25 schools, covering about 4,000 students and 102 teachers. (Xinhua/Zhang Meng)

Students of the Hejiabao Central Primary School read during a trial class for the leapfrog education model in Dangchang County, northwest China's Gansu Province, May 27, 2013. The program, aimed at exploring a new education model and starting from 2011, has been carried out in 101 classes of 25 schools, covering about 4,000 students and 102 teachers. (Xinhua/Zhang Meng)

A teacher guides the students of the Hejiabao Central Primary School in reading during a trial class for the leapfrog education model in Dangchang County, northwest China's Gansu Province, May 27, 2013. The program, aimed at exploring a new education model and starting from 2011, has been carried out in 101 classes of 25 schools, covering about 4,000 students and 102 teachers. (Xinhua/Zhang Meng)

Students of the Hejiabao Central Primary School raise their hands to answer questions during a trial class for the leapfrog education model in Dangchang County, northwest China's Gansu Province, May 27, 2013. The program, aimed at exploring a new education model and starting from 2011, has been carried out in 101 classes of 25 schools, covering about 4,000 students and 102 teachers. (Xinhua/Zhang Meng)