Language Arts
Tumble Books 
Tumble Books is a great site for working on reading skills. 
Writing Prompt Ideas 
A list of fun writing prompts

Math
SOLPass is a wonder site to use when reviewing 4th grade science concepts.

SOLPass is a wonderful site to use when reviewing concepts.

Spelling City

   SOLPass


   Type to Learn 
   It shows which finger(s) to press and gives a score. Great practice :)