What is the problem?
State the general problem. If applicable, tell us what information you will use, e.g., a link to some web site that provides the information you used. What will you do?
What is the something extra?
What is the in-depth aspect you will do? If the problem is related to some other group's project, tell us how they fit together. If in doubt, include the information.
What did we learn from doing this?
(This should be written after you have done the work.) What is the bottom-line? Is functional programming suitable for (part-of) the task? Make sure you include the evidence for your claims.