Promethean Planet has over 50,000 free teaching resources, lesson plans and worksheets. Including free interactive whiteboard resources.

"My students love it! It really challenges them to master the concepts. I told one of my students to change to another topic so she could practice for the upcoming tests, and she said, 'No, wait! I want to get to 100% first!' I have never seen her more motivated to succeed!"

This is the 2 sisters website - the developers of the daily 5 and cafe. I use this website frequently in my classroom for planning my language arts lesson in 5th grade.