At first he thought it would be good fun to stand there, and for awhile the novelty of the thing did amuse him a little.

When he began to grow weary, he contrived to interest himself by tracing out the faint chalk-marks of long-forgotten problems, that had not been entirely obliterated from the blackboard.
This afforded employment for his mind for a time; but by-and-bye he began to grow tired and uneasy.

His eyes longed to see something else, and his legs were weary of standing so long in one position.

He wondered, too, whether the boys were looking at him, and whether they smiled at his strange employment.

At last, after doing penance about an hour, his exhaustion got the better of his stubbornness, and on informing the master that he thought ho could study now, he was permitted to take his seat.
After returning to his desk, Oscar had but little time to finish learning his geography lesson, before the class was called out to recite.