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.
1933
2013
1978
1964
2014
1931
1976
1996
1937
1986
2005
1973
1994
1979
2010
2003
2004
1988
2017
