Chelsea mother gives her money when she make the honor roll at her high school. chelsa mother is providing a

There are several possible answers to this question. If Chelsea knows beforehand that her mother will give her money to make the honor roll, then this is an "incentive" or a "bribe," since Chelsea's mom is using money as a way to motivate her. If Chelsea doesn't previously know that she will receive money for making the honor roll, then this could simply be a "reward," which is something given to recognize effort or achievement.