Language Arts

Practice your grammar skills.
http://www.eduplace.com/kids/hme/k_5/quizzes/

A lot of sites on reading!
http://jc-schools.net/tutorials/interactive.htm#Reading

This site is all about reading and writing. There are word games and even 
instructions on how to write and publish your own book.
http://library.thinkquest.org/J001156/index.htm

Here's a fun game about types of sentences.
http://www.harcourtschool.com/activity/clubhouse/index_pre.html

 	
To find a list of appropriate books for the fourth grade, click here.  The 
list is organized by favorites, independent reading, and nonfiction. Guided 
Reading levels are shown. (You will need Adobe Reader for this one.)
http://teacher.scholastic.com/products/paperbacks/pdfs/Ready-To-Go_Grade_4.pdf