There has been a huge push in vocabulary instruction at our school over the past year. We've focused on latin roots, affixes, word walls, etc. to help students with word attack. My students have enjoyed playing what I just call "Free Rice." The program donates rice to those in need while anyone can build their vocabulary base. It is really a rote type of activity, but there is a little friendly competition that goes on to see who can score the highest in the rounds they play. It gets advanced enough that even adults find it annoyingly addictive!