BISS Puxi is turning 20, and they’re throwing a big, free community bash on September 6, 4–9pm, at their Huacao campus. Expect live entertainment, games, a merry-go-round, treasure hunts, an inflatable obstacle course, “sponge the teacher” (exactly what it sounds like), plus international food and drink. Open to everyone,kids, parents, neighbors, curious strangers. It’s part school fête, part carnival, all celebration.