Students will have an extra week of winter break before the start of spring semester next year, University Registrar Robert Doolos said in a broadcast e-mail sent Friday morning.As part of the revised academic calendar for the 2009-10 school year, the first class of the spring 2010 semester will be the day after Martin Luther King Jr. Day — a week later than when students returned to classes this semester. “This will allow administrative units … the time they require to prepare for the spring semester,” Doolos said in an e-mail. Spring 2010 intersession will start later because of the change and will be the same length as winter and summer intersessions, according to the e-mail.Summer 2010 term session B — the shorter session — was changed in the revised calendar to start at the same time as session A.”Beginning session B later than session A had a detrimental impact on enrollment in session B courses,” Doolos said in the e-mail. ——Contact Kyle Bove at [email protected]