http://www.helium.com/knowledge/253347-a-summer-vacation-survival-guide-for-teachers-teaching-summer-school.xml Helium.com > Education (Other) > A summer vacation survival guide for teachers teaching summer school en-us Copyright Helium.com Thu, 13 Aug 2009 01:14:51 GMT Thu, 13 Aug 2009 01:14:51 GMT