rspec - has_many-belongs_to controller question.

I'm using
restful-authentication from http://github.com/technoweenie/restful-authentication/tree/master
RSPEC 1.1.4 from http://github.com/dchelimsky/rspec-rails/wikis/home
(downloaded this week)

The spec for loging in work
I even have it working checking for authentication on the teachers
controller.
What I want to do is find students that belong to a teacher
So if I'm the teacher and I log in I want to see only my students.