TeacherVision

TeacherVision is another website filled with lesson plans and ideas for themes/holidays, etc.  Although you have to pay for a membership, it's not a bad price, about $40/year.  You get all access to any grade level (PreK to 12th Grade!), all subject matter (other important subjects besides ELA & Math...like Science, Music/Drama, Social Studies, Art, & Health), and the printables.  Lots of extra resources for you and they have fun activities to do, too, to change up your classroom routine/work.  Very useful!