She tries to pick up the chalk...

As Mister Smith seemed oblivious to her issues with the chalk, Anna decided the best thing to do was clamp her legs together and quickly bend to get it, thus avoiding the exposure of her private parts and being able to move on with her day without any further embarrassment!

Of course, in practice she found her legs feeling very weak, and, as she attempted to bend down, she found that covering... everything was going to be difficult.

In a moment of panic, her face as red as a beet, she turned to her side, facing away from the class and teacher, bending her knees, she felt weak, if Mister Smith moved, or one of the other students craned their necks sideways she would be revealed to her entire class.

She slowly stood, and quickly turned to face the board again, unable to spend any more time looking at the packed classroom, moving her hand down to the back of her skirt so as not to moon her classmates.