I love how on the front of each card there is:
I've been using the cards to reinforce the letters that my daughter is learning in her Spanish curriculum, so I started out by pulling out all the vowels first, and reading them to her. Then I would give her the sound the letter makes and ask her to point to the letter that matches the sound. I've also had her pick out the cards to spell her name. But there are many other games you can play with your kids, and in fact, the box comes with a suggested list of 12 games.