Answer:
There are several reasons why a teacher would set goals during their career. One reason is that they want to advance their career. The teacher could want to seek a different position, a position with a higher salary or a promotion. Setting goals might help them to achieve this new position.
Another reason is if they want to become better teachers. This could be for career advancement reasons or because the teacher wants to perform better at their job. Setting a goal gives them a specific improvement to aim for so that they can more easily measure their progress