I asked K if they're still having English class at her school this year, and she said yes, in fact she helps teach it. I know she doesn't usually attend the class, so I wondered about this (entirely made up, part made up?) until I realized she was confusing "English class" (with native English teacher) and singing songs as a class in English with the regular teacher. I guess she feels that knowing all the songs makes her a co-teacher.
She has also told me that we have to stop talking a couple of times as we stand at the school door waiting to go in -
"We have to stop talking now.
You can't speak English to me in there."
"Oh, really? Why not?"
"Because...they don't understand English."
"I see. Tak můžeme mluvit česky."
(visible relief from K)
Although oddly she has no problem speaking some English with me when I come to pick her up or once we are inside. It seems like a reminder to herself as much as to me: time to change gears.
K's teachers have reported that she is much more assertive (but not too assertive - I asked) than in the past, that she is physically and emotionally well balanced, bounced back from the birth of her baby brother last year, and generally doing well in school.
A lot of this comes down to her increased comfort and confidence in Czech. Before, the language barrier meant she held back and kept her head low, but now it is essentially gone and her real personality can show.
I'm very pleased. What a change from this!