An injury ended Zhang Zhiqiangs dream of becoming a professional basketball player, so he became a physical education teacher. To impress the new young math teacher, he volunteers to teach the problem class of the school in math.
2007
2010
1993
2011
1924
1937
1941
1918
1980
1966
1961
1922
1969
1976
2005
2001
1948
1963
