For this, our headmistress punished me on the next day, after asking my mother. She told me to touch my toes in class (my butt pointing to the ‘audience’) & my skirt was lifted as usual, but then the next thing she did was to pull my panties down to knees!
The cane touched the centre of my butt & she directed me to take proper pose by prodding the cane. she made sure my knees were not bent & the buttocks were properly spread open. 10 strokes with full force followed, plus 3 extra for getting up & rubbing in between.