These are two different jobs, one can improve your overall view, grasp the policy level and normative consciousness, and exercise your coordination and organizational skills; One can cultivate your meticulous and solid work style and exercise your ability to control the teaching management at the grassroots level. Each has its own emphasis and is different. It depends on your own characteristics and interests.

Regarding the teaching supervision work, the answer on the first floor is biased and unreliable. Some supervisors may not have high quality, but it does not mean that supervision is not important. Good teaching supervision can play the role of guidance and supervision, which is very helpful for teachers to strengthen teaching norms and improve teaching quality. If you can work in the teaching supervision office, it shows that your ability and quality are relatively high, and you are appreciated and valued by the leaders, which is your affirmation.

I wonder if this solution is still useful to you today. I don't know if you will see it. I hope you can work hard in any position and succeed at an early date ~!