This site offers free intervention ideas. I think particularly helpful are the different Tools listed on the side of the page. They can help assess reading fluency, writing skills, math skills, behavior, and more. All of this is an important process in Special Ed and RTI programs. Also helpful are the intervention lessons that you can find under the tabs “Academic Resources” and “Behavior Resources.”
I would really recommend any new teachers book mark this site and use it, and anyone else whose grasping at straws about how to meet the needs of their struggling students.