BINGO cards are in correlation with Fundations curriculum (qu instead of q).
There are 11 BINGO cards in lowercase and 11 BINGO cards in capital letters.
I use the Fundations letter cards to call out BINGO spots. I vary in how I call them out: Sometimes I show the letter card, say only the sound with no visual, or say only the letter name. It depends on what I want to assess the students on.
I also partner up students (which is why there are only 11 sets of cards), so that they can help each other out.