Hi Sara!
I don't know if I can be of any help, but I'll give it a shot. Do the vocab words you teach have a certain skill that goes along with them? For example, you teach grade 1, so if you are teaching the word dog, you could teach nouns. A noun is a person, a place, or a thing. (You can use the PowerPix which are under the free E-books section on the website. They have PowerPix for 1st grade). The gesture for noun is a person (point to yourself), a place (point out), or a thing (tap on a table or desk). This would teach them the skill, and you could introduce several different words that go into the noun category. Then to get them to use the word and understand its meaning, you could have them pop a piece of vocab candy in their mouth, yum. When you say a vocab word and they use vocab candy, they say it and use it in a sentence (at least in my room), so you're accomplishing your goal and getting them to build a foundation for parts of speech with the PowerPix and gestures.
To get them to teach. I introduce the skill (simply tell them what we are learning about today). They repeat this. Then I use mirror words. You will say the skill set and use the gestures, which are printed on the bottom of the PowerPix. They will repeat what you say and do the gestures. After they repeat using gestures. Clap twice and say, "teach." (You can say 1s teach 2s or long hair teach short hair, etc.) I have my students already numbered or you can have them teach their eyeball (person sitting across) or shoulder partner (person sitting next to). When they teach each other, one person is talking and using the gesture and the other one is listening and modeling the gesture. Then say, "Switch." They say, "Uh, oh switch" and they switch roles. Everyone has a chance to talk and use gestures (involving the Whole Brain!!!!) It's really not chaotic at all and my 3rd graders love it. Everyone is involved and learning and they are talking about what you have directed them to talk about. When you want to call them back to you, use "Class/Yes." I hope this is helpful. Keep checking on the forum and you'll find lots of great ideas and watching the videos!
Thanks,
Staci