Every day my daughter and I review her vowels. She knows them, I know she does. We can get there and she will fly through them. I will ask her to do it one more time and all the sudden she can't remember them. Like A for Apple. She won't even tell me that the picture is an apple. We can go perfectly fine for a couple days and then she will do this to me for the rest of the week. I believe she thinks if she acts like she doesnt know it I will do it for her. It's frustrating me. I end up yelling and she crying in time out. I don't know what to do to get her to stop doing this. Anyone have any insight on this?