decision making, motivation, group behavior, communication, power and politics, organizational structure, organizational culture, human resource practices and change management.
For all these above, do you have class material and readings to explain them? If so, learn them, and then choose three to apply to your company. It will be cool! After you do that, I guess the next step is to follow Sean's advice, above.
It will help to make a list of practices and policies of the organization.
This kind of assignment has many aspects, so it can be overwhelming. You need to pick apart the instructions and it will be alright. Learn those concepts from decision making to change management! That is good stuff.