In response to your question about how often we practice the gestures~
When I teach a new power pix with the definition and the gesture, we practice it at least 20 times the first day. I teach first grade, and I want to make sure the foundational concepts are solid. Over the course of a week, we revisit the vocabulary over and over. For example, when we are lining up, I may give them a word, and they give the definition and the gesture, or vice versa. During transition times, I quickly do a gesture, and they give me the word and the definition. If the phone rings, I can ask them to review vocabulary, and they quickly turn to a partner and practice. I put the concepts/words we lave learned in plastic sleeves in a 3 ring binder. I can flip through them and we review. Or, I take them out and put one on each desk, and we play a review game similar to musical chairs. I put some music on and they walk, and when the music stops they need to look at the word closest to them, identify it, give the definition and gesture, and then we move on. They really love this. You can pair stronger language students with ELLs if that helps.
I tend to stick vocabulary practice in whenever we have a few extra minutes. As I said, I teach first grade and often have a high population of ELLs. They need lots of oral language practice, constructing sentences and using academic vocabulary. The students beg to play " Guess my word", which basically consists of a student coming to the front and secretly looking at a word, then doing the gesture. The class gets to guess the word. This is similar to charades, except the students have been taught the words and gestures, so they are not just guessing random words.
Repetition builds confidence and cements learning.
Hope this helps!
Deb Weigel
WBT Intern, Level 1