If you earn money by rewarding parents or students, it may violate the relevant provisions of the Education Law, and the local education bureau will impose administrative penalties. According to the relevant laws and regulations of our country, if online teaching is really needed, you can choose a formal office platform to teach. If the reward comes from someone else, it doesn't constitute a reward. If you are a teacher, it is illegal to accept rewards, but in-service teachers are not illegal.
In ancient times, reward refers to a reward given by a noble person to subordinates or money or tips given in return for the services of others, which is translated into a reward for the landlord in network terminology.