A fully automatic camera sometimes means that you have auto and manual modes. It also sometimes means its auto only, and no good to you in class. What model camera is it? I am sure someone here has one, or played with one and could advise you further on it.
Most people that take photo classes prefer getting an older no frills maual camera. They are the easiest to learn with and they don't have the technology to get in your way.
Many think the older cameras are capable of getting better results because they make you focus on the craft, as opposed to the gee whizz features of newer auto focus cameras.
The main reason i went with a newer camera is only because i wear glasses and i find it hard to look through the eyepiece on older cameras. Auto focus usually guarantee's that i will get an in focus picture, and the newer ones sometimes have dioptric adjusters for eyeglass wearers.
Of the new cameras, look for a canon (model) Rebel or Elan, A Nikon (model) n50 or higher, or newer Minolta, (model) 3x or higher. All these cameras have manual modes on them which will work for your class.
Of the manual cameras, any will work, just make sure the light meter functions properly and the sputter speeds are accurate. Canon A-1/AE1's work well, Nikkormats are great, and the Volkwagon of all cameras is the Pentax K-1000. The latter being the camera most recomend to start with.
Any Camera listed though you will have a great time learning on.