SIBU: All primary and secondary schools in Sibu district will start a class rotation system starting today to curb the spread of Covid-19. Sarawak Education and Technological Research Assistant Minister Dr Annuar Rapaee said the decision was made after taking into account safety factors and congestion at schools. “We want to reduce the number of students in school at any one time, ” he posted on social media site on Saturday. Annuar said under the rotation system, Years Four, Five and Six pupils will go to school on Monday, Wednesday and Friday, while preschoolers and those in Years One, Two and Three will go to school on Tuesday and Thursday.