KARACHI, May 11: Prof Anwar Ahmed Zai, EDO education of the city government, has asked heads of schools to improve the environment of their institutions.

Addressing a meeting of heads of secondary and higher secondary schools at the S.M.B.Fatima School here on Saturday, he asked them to chalk out a programme for improving the standard of education in the next four months. He said that performance of teachers would be judged from the position secured by their institutions in exams.