School Culture and Job Satisfaction:Its Effecton Biological Teachers’ Task Performance

School culture has been viewed as a vital variable in building school climate to be more condusive. Whether this factor will affect biological teachers job satisfaction and finally affect teachers’ task performance was the problem of this research. A causal survey used by selecting randomly 90 senior high school biological teachers as sample. There were three instruments developed to measure teachers’ task performance, school culture and job satisfaction which has been already validated. Data analyzed by regression, correlation and path analysis. Research findings showed that teachers task performance directly and significantly affected by school culture and job satisfaction as well, and based on this finding, job satisfaction was good mediated variable in connecting school culture and teachers’ task performance. It was logic findings when teachers’ performance expected to be more positive, all of teachers, especially biological teachers, require a positive atmosphere reflected by school culture and also to what extent teachers felt satisfied treated by the school system. Therefore, educational policy makers should pay more attention on how to improve school culture to be more conducive, teachers felt more satisfied then will have an impact on school quality reflected by teachers’ task performance.