Only you can log into UCAS Track and see your application (because only you know your password and UCAS ID). Why do you want to have your teacher track your application anyway?
We are meant to get our teacher access to see our applications so they can make sure we’ve done things correctly and so they can see our progress
A buzzword is how you can link your application to a college/school and gives them access to see your progress.
Buzzword then your school will see your application and offers