Generally speaking, if it is a more formal education and training institution, the salary will be lower when you first join the job, because there is a learning period, which is the growth period of teachers. Training institutions can't pay you much to study, but once the study period is over, you can take classes on your own. According to the principle of more work and more pay, take more classes or take more students, and the salary will naturally increase. The salary of the school is relatively stable, and the salary increase is gradual, so each has its advantages and disadvantages.