trichy primary students of government and aided schools in central districts have fared well by grabbing the top four places in the recently concluded statelevel achievement survey slas by sarva shiksha abhiyan ssa of the state education department by scoring an aggregate of 71 trichy district has been ranked number four among 29 districts karur thanjavur and perambalur have figured in the top 10 according to education authorities the annual survey was conducted in january and went on till february the survey was conducted in schools randomly selected by the authorities with schools not in a position to fail students till class 8 on the basis of poor performance the slas helps test their performance while primary students were tested in subjects such as mathematics english and tamil middle school students were tested in science as well ssa authorities here said class 3 students were tested mostly on objectivetype questions while students of classes 5 and 8 were tested on comprehension and oratorical skills the written and oral tests were designed on the basis of what the students had studied in their previous classes and other knowledgebased questions education authorities said the central districts have performed well when compared to the other developed districts in the state most of the districts that are industrially backed and agriculture rich have proven their skills in the field of education the government is also trying its best by providing them with all the resources said muthukumaran an educationalist an ssa official said efforts are being taken to improve the marks in science as it was found that many students were poor in the subject interestingly chennai stood in the 27th position in the survey