Conserve water

Approaching a corner while walking, I am surprised by two little girls running with papers in their hands—two kindergarteners. One of them extends one of the papers she was carrying, and as I go to take it, I can't quite reach it; given the speed they were moving at and the energy with which they were running, they kept right on going without stopping or giving me time to catch it. I haven't taken two more steps when a whole bunch of other kindergarten kids turn the corner, along with a few older ones—surely parents and teachers. All the little ones were holding white papers in their hands. One of them hands me one, and I accept it. A man carrying a baby, presumably her father, says out loud and clearly, "Thank yoooou." They continue walking and handing them out. For my part, I continue on my way. Everything happens in mere seconds—the seconds it takes to walk five or six steps. The papers had been transformed into flyers. The one I got could be understood as "Conserve water" along with a small drawing.

Conjecture: They worked on the topic with the kids in the classroom—Ecology, Resources, Water. Then they turned the activity into flyers (bearing the kindergarten's logo and name as a signature). Finally, they took the kids out to distribute the flyers (surely a walk around the block) as a way to raise awareness.