These are some websites from the NWEA for more practice in math and reading.
Web Sites for Kids and Parents
Mathematics
www.aaamath.com
www.coolmath.com
www.funbrain.com
www.aplusmath.com
www.mathforum.org/dr.math/
www.mathleague.com/help/help.htm
www.edhelper.com
Language Arts/Reading
www.merriam-webster.com
www.vocabulary.com
www.superkids.com/aweb/tools/words
www.lexile.com
Here are a few websites to find the level of a trade book. Fountas and Pinnell Scholastic Books
Below are detailed instructions on how to level books.