This morning as I was checking my mailbox at school I overheard two subs complaining about not getting their planning periods that often any more. They were saying that when the teacher they sub for gets a planning period to rest, they should too. But our school has been using subs to cover other teachers' classes as needed during those planning period times. Apparently yesterday one regular teacher's kid got sick and the teacher had to leave suddenly. While looking for a replacement, one teacher suggested that a sub who would have planning the next period, take the class. The sub was greatly offended. She and the other sub this morning were talking about how rude it was of the teacher to suggest the sub to cover and that instead another teacher should cover during HER planning. I was surprised. Surprised at the attitude, surprised at why a sub would think she'd need a planning period and surprised that they would openly complain about a staff member in the staff lounge. It seems like a no-brainer to me. Kids need watching, better to have a SUB be the substitute than pull an actual teacher away from his/her planning. How is this done in your schools?