He said he heard her say, "You're a smart one, aren't you? You'll have to help the teacher out with the other kids."
Should warning bells be going off like mad, or what?
We had a similar experience with DS's new 3rd grade teacher (so it doesn't stop at preschool) who asked him what he did over the summer. He told her about his math camp and that he learned "advanced math topics" (don't know where he heard that expression) so she said, "Well you will have to help me with the advanced math when I need it then."
So here is your choice: helping the other kids or helping the teacher? ha ha
Kate