Comments are not available on this story.
Send questions/comments to the editors.
PORTLAND, ME - JANUARY 22: Substitute teacher Cindi Blackie goes over a workbook with a fourth-grader on Tuesday at Riverton Elementary School. Facing a shortage of substitute teachers, Portland has increased its daily pay rate to attract more subs. (Staff photo by Ben McCanna/Staff Photographer)
Comments are not available on this story.
Send questions/comments to the editors.