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Overhead Graph Grids
You can think of these as write-on, wipe-off graph paper. Obviously designed for use with overhead projectors, they can be used with dry-erase markers to draw geometric figures or to work problems. These also provide a handy tool for measuring the volume of geometric figures. Just lay the grid over the figure and calculate the square inches or centimeters. Sheets measure 25 x 25 centimeters or 10 x 10 inches with margins. ~ Janice
