Something different

Fortunately for our team, the bilingual teachers at the primary/high school we volunteered for, provided most of the lessons.
The challenges for us were to come up with impromptu activities based on the materials given to us after the lesson was explained. A lot of these activities could be learned by people who may have attended summer camps; paid attention in school and retained the fun activities from their classrooms; or, from professional educators who are trained to do this regularly. However, anyone who is quick, creative and clever can come up with activities, and when there's a team of at least a couple of other people, it's not too difficult.