Sand and Water Tables: Boxes in Boxes. I love this idea for sand because it creates a 3D experience that children can explore for an open ended experience when using a sand table. By reaching into boxes and poking heads in and around boxes, this creates an ultimate experience with sand by looking over and under boxes. This is also great for children's imaginations - they can even bring props into this sand table to create a story.
"Viewed at an astounding magnification of over 250 times, tiny grains of sand are surprisingly colorful and extremely unique. Each piece is either a fragment of crystals, spiral fragments of shells or crumbs of volcanic rock." Dr. Gary Greenberg