This week I'm going to feature a tech tool that I have used successfully in many different ways. Are you familiar with quizlet? It's at www.quizlet.com
You can use quizlet for vocabulary, formulas, or really anything that you need to match things up and memorize. (Some examples would be states and capitals, foreign language terms, even chemical formulas).
On the website, kids can flip through the terms and definitions like flashcards, play two different games, or different modes to learn the terms, including one where the computer reads the definitions and they type in the words (great for ELLs).
If you have ipads or ipods in your classroom, there is an app as well. This year, however, I do not have much technology time available. That's ok! I'm still using quizlet.
Once I enter in the terms and definitions, I can print out various things -- a glossary, flashcards, word and definition cards that can be matched, or quizzes in a couple different formats.
I try to focus more on concepts, but the bottom line is, if kids don't understand the vocabulary and language then they can't be successful.
More ideas of how I used vocabulary in creative ways are available in my TpT product located here.