Practice Synonyms and Antonyms by playing games!

http://www.abcya.com/synonyms_antonyms.htm

*Play Super Word Toss to practice synonyms and antonyms

http://www.scholastic.com/wordgirl/synonym_toast.htm

*Play Synonym Toast to practice synonyms

http://www.internet4classrooms.com/skill_builders/antonyms_language_arts_fourth_4th_grade.htm

*Synonym and antonyms games-  Choose a game to play