MILWAUKEE (AP) -- Districts across the state may have to tack on days at the end of the school year to make up for instruction days canceled this week.
Schools across Wisconsin closed Tuesday because of bitter subzero temperatures. Some of the schools had closed Monday as well.
The state Department of Public Instruction mandates that districts schedule 180 days of school. There are separate requirements for a minimum number of hours of instruction, depending on the grade level.
Many districts build a few days of overage into their calendars to account for days of inclement weather. But some have used up this year's overages and will need to add school days in June.
Amy Arlen of the Wausau School District says school officials won't hesitate to cancel more days to keep students safe, even if it means extending to school year.