http://www.spellingcity.com/ type your spelling words, then test, teach or play a game - teachers can also have their own home page to save their spelling lists.
http://www.tampareads.com/vocabulary/4thgrade/introduction4.htm 4th Grade Vocabulary Project: Use the 4th grade vocabulary list above to integrate these strategies in your own spelling and vocabulary curriculum. They will improve standardized test performance as well as reading ability.