Is it permissible for a teacher to compel a girl to perform mixed athletic exercises (in which students sit, stand, run, and jump) in front of boys?

A teacher has the right to respect and good manners, but obedience to him is not permissible if he commands something that contradicts the Sharia; because obedience is only in what is good, and there is no obedience to a creature in disobedience to the Creator. And the practice of sports by adult girls in front of a male teacher or male students may be contrary to the Sharia, which commanded women to cover themselves and forbade what incites temptation.