• thinking about the topic ... understand all aspects, etc.

• finding out what others have done before (Google)

• considering what's need to evaluate your work
  (don't bother considering evaluation-by-bluff ... it doesn't work)

• making notes on everything that you look at/think about

• set up a thesis web site? (for holding the notes)

• meeting your supervisor and find out what they expect

• establishing a consistent Thesis working pattern

Do all of this before week 6 and assignments get heavy.