In any case, Julie's human language has improved considerably.
Rather than saying my method of teaching is good, it might be because Ginger is correcting her way of speaking at every point.
After all, it seems if you quickly revise the words at every time you make a mistake, you'll quickly learn it.
"That's great isn't it, Julie. Make sure you treat it preciously."
"Ginger-sama as well, thank you very much.