A E I O U & sometimes Y

Vowels! Darcy was sitting at the table with me tonight playing with her new water color paint. I had painted her name and she was naming the letters... no she didn't know the right letters but out of know where she said "and thats a vowel" I was floored b/c I didn't teach her about vowels! I asked matthew and he said no. So I called his mom the only other possible person and she said no. I have no idea how my child learned the word vowels. I'm amazed.