This study aims to determine the perceptions of students about the activity of biology practical work in Senior High School (SMA) Negeri Pekanbaru. The research was conducted in SMA Negeri who implement biology practical work at Pekanbaru city lesson years 2013/2014 in January-June 2014. Kind of this research was descriptive research. Population were all students in SMA Negeri Pekanbaru. The te…