In k-2, our DD's teachers would tell us how she's so shy, quiet, reserved, doesn't seek friendships, etc. The DD we knew was a prankster, always making up new catch phrases, and COULD NOT STAND to be alone. She had several friends in the neighborhood she was hanging out with constantly, and if none of them were available to play with, and her parents were busy, she was depressed.

And then DD started becoming someone completely different at home. Her teachers also described her as so well behaved, compliant, etc. This was our normal experience with her at home... before. About this time, she started having meltdowns before she even got off the bus, screaming and crying over minor issues (yes, even spilled milk), hitting her head on walls, saying she was stupid, etc.

Homeschooling fixed all this. Now, as a 9yo grade-skipped into 4th grade and in the gifted program (so, as DD says, she's basically in 5th grade), the girl we hear about in school and the girl we meet after school both more closely resemble the girl we've always known.