I designed a 10x10 quadrant grid and base. The base requires a piece of cork board to be cut and glued in. Once cork board is glued in the 10x10 quadrant graph can be placed on top and a Blind person can graph plot point with total tactile response even having the "X" and "Y" sections marked out in Braille.
Sometimes the holes stick. Might need to scape out a little room but not much
Lesson Plan and Activity
For graphing quadrants.
Use with a sheet of cork board. Cut to size and glue onto the bottom of board. I used small sewing pins for plot points.