Side 1 (Rectangular Coordinates) contains a 36 by 36 grid with 1.1 inch squares. The grid has bold X and Y axes that are numbered from -18 to +18.
Side 2 (Rectangular Coordinates with Radian-Numeric Axes) contains a 34 by 34 grid with 1.1 inch squares. The grid has bold X and Y axes. The X axis is numbered in radians from -2π to +2π, at π/6 intervals. The Y axis is numbered from -6 to +6 at 0.5 intervals.