The students in Jean Facchiano's fourth-grade class have spent the morning engineering their own models of permeable membranes, using ordinary kitchen supplies like sponges, coffee filters, and perforated aluminum foil. The goal is to design a system that lets water drip into a frog habitat, keeping the container slightly damp, not dry or flooded.
Each group of students has come up with their own unique system for controlling water flow into the habitat. Now, in the video below, the students present their results. It's not just a show-and-tell; it's a concise demonstration of elementary students starting to apply their systems-thinking skills.