In fact, teaching vocabulary in the content areas of mathematics, science, history, and English is not a separate entity from teaching the core understandings of each domain. As Vacca and Vacca (2008) have always stated, words are labels for concepts, and so teaching vocabulary is actually teaching about the ideas they represent.

One game is calling out a question to answer or a word or sentence to spell, giving the groups twenty or thirty seconds to write the answer (and telling them not to raise their board until I say time is up), and then having them show me the answer.  The groups with the correct answer get a point.   This way everyone has an opportunity to score a point, not just the first one with the answer.  I’ll sometimes end this game, and others, with an opportunity for each team to bet all or part of their points on the last question (like in “Final Jeopardy”).