So last Christmas I was part of a blog hop and designed a Travel Blackboard Mat which features a straight blackboard area and side chalk holder. I have tweaked this pattern to incorporate the Tic Tac Toe board and voila, another pattern is born!!
Title is the link to the PDF file with the written instructions and measurements. The pictures are just for clarity sake. I didn't take time to re-write the whole tutorial again. Hope you enjoy it!!
Assembling the Tic Tac Toe Board: