Seattle Public Schools is canceling classes for a fourth day Monday as a strike by teachers enters its second week.

The strike, over issues that include pay raises and teacher evaluations, has delayed the start of the school year for about 53,000 students. The sides resumed negotiations Saturday and continued to talk Sunday.

The educators, who have not received a cost-of-living pay raise in six years, have joined other workers pushing for higher wages. The cost of living has been rising in Seattle thanks in part to the city's influx of highly paid tech workers.