tic tac toe to learn letters

This is a variation to playing the old game of "Tic Tac Toe." You can use it to get young beginning students to practice writing letter...With regular "Tic Tac Toe," you use "x's" and "o's"...But with this...you choose different letters everytime...So one day, they are practicing "m's" and "p's" and the next day, they are practicing other letters. Mike Donaldson...Japan...