Piper love to teach the other two things. Most of the time I will ask Thaddeus where he learned something and Piper will chime, "From me". I could not have asked for a better 3 year old! Thaddeus LOVES his sister and will listen and do anything she says and so since she was reading a book to Odi, he wanted to do the same! I love that my kids are friends, most of the time!