Students can use these versatile hundred boards for everything from math games to graphing. Laminated surface allows students to correct mistakes or begin a new activity with ease. Use with dry-erase markers, not included. The Learning Resources Laminated Hundred Boards, Set of 10 Features: 10 Double-sided laminated cards measuring 11" x 11" Printed with 1" number squares from 1 to 100 on one side Blank grid for patterning and graphing activities on the reverse