3-Dimensional Topographical Watershed Models In order to learn how to read topographical maps and understand how these layers translate into a three-dimensional figure, students designed their own personal watersheds. First students created topography maps of their watershed design and then constructed models from these maps. To build the models, students glued layers of Styrofoam onto wooden bases cut to the shape of their own watershed design. These structures were then covered with paper mache and painted. Take a look at the stages below and our final products!   Sketching map designs   Learn How To Read A Topographic Map Checking the drainage patterns using playdough   Cutting wooden bases for our models     Attaching Styrofoam layers with hot glue Smile for the camera! Carving to a perfect fit Hard work equals big mess! Time to paper mache Designer Watersheds!   3" x 4" model of our Fishing Creek Watershed