Make it a game.
Would these help?
GRE Prep- and GRE Preparation -- 750 GRE Vocabulary Tests Online
Flash Matching Quiz - GRE Vocabulary Words
SOUNKEEPERS.com: GRE Vocabulary Builder - List 1
GRE Vocabulary and SAT Vocabulary Tests and Practice
supervocab.com: your vocabulary builder site
GRE English/Spanish "A"
- For Teachers