Get a white signboard from Hobby Lobby.

Freehand the coastlines in pencil while looking at a map for reference. Paint the seas, using Duckduckgo to find out relative depths. Start adding topography using plaster-of-Paris coated gauze strips.

Continue adding topography.

Some of these mountainous areas threatened to come loose after they dried. I simply applied some Elmer’s glue under them.

Paint as desired. I protected some of the smaller bodies of water by squeezing a thick layer of Elmer’s on top of them.

When dry, paint grassy areas with craft glue and sprinkle on “grass” that you can get in the model railroads aisle. Let dry, then vacuum up loose “grass.”

Show to 3rd, 4th, and 5th graders.