If it is an renewable contract, this will mean that they are in
need of manpower and they give you an option as to whether you can
choose to continue to work with them or just leave.If it is
non-renewable, most probably it must be some "scapegoat" type job
where they want you to do the task that they themselves would not
do and need you only for temporary use. Since you did not stated
your position, it is very difficult to guess if my prediction is
true.
I think it is more important to find out if you can give 1 month
notice for resignation even if you are on contract and if any
disadvantage will happen if you do not complete your 2 years
contract. Is your education insitution public or private ? For your
info, the reason why I said your job might be the "scapegoat" type
is because unless you are employed for teaching, in "most" public
institution, any equipments that they brought they will need the so
call "staff" to keep track due to government audit, and if any
equipment are lost, the user who use it might not be responible if
he is "missing" and you might be the one that end up paying it. So
didn't said I didn't warn you !
Finally bullying will always happen in workplace regardless you
are in public or private sector, so the 2 years contact will work
against you if you find that you cannot quit your job. And finally
try to find out if you are pay if there are overtime. Chances are
if you choose to work in weekend, some companies will stated that
it is you who "volunteer" to work in sat and sun and they will not
pay you.So didn't try to be an "free labour"
