This is a complete set of letter and number cards. It contains a set of lower case letters, upper case letters, numbers 0-9, and math symbols. There are many uses for these cards in the elementary classroom. In lower elementary they can be used for letter recognition, flash cards, matching upper and lower case letters, as well as addition and subtraction. In upper elementary classrooms, the number cards can be used for multiplication and division. For my fourth grade classroom, I arrange the letters as they would be on a keyboard, then glue them onto a poster board and laminate. The students then use their giant "keyboard" to practice spelling words. There are also two blank leaves included so you may customize for your own use.