Tonight my daughter read her third book cover to cover all by herself. It was Curious George's Opposites. It's Guided Reading Level is J, but it's grade level equivalent is 3.1. The Lexile level is 570, which is - according to the Lexile website - as high as low 5th grade. See how wacky these leveling systems are?! This is a board book, one sentence per page, only 16 pages. I prefer the Guided Reading leveling system, of the choices available.
So, so far she's read the following books without assistance, start to finish:
1) Have You Seen My Cat
2) I Love You Dear Dragon
3) Curious George's Opposites