Advancement in many school districts is tied to teacher performance evaluations. If you get a poor teacher evaluation, you may get stuck teaching six sections of remedial English in the school basement. That's why the teacher observation is so important. If you mess up during the teacher observation, your teacher evaluation will be negative. If your teacher evaluation is negative, you'll be limited. Even if you transfer to a new school, the teacher performance evaluations come with you. That's why you need to implement these teacher observation tricks.