This became necessary due to the need for textbooks in Sinhala and Tamil following the change in the medium of instructions in the school system from English. Since 1980, DEP has published free textbooks for grades 1–11 in all schools for all subjects. Provincial level Provincial councils play...
A sample of 1316 grade 11 students representing Sinhala, Tamil, and Muslim ethnic groups from the three categories of public schools, which provide instructions in the vernacular languages of Sinhala or Tamil, participated in the study. Girls showed significantly higher performance in science compared...