2) The point of the assigment is provide an additional experiment or idea to expand the scope of the study. This could be addressing an weakness in the study or an additional experienment that should be done. 3) Read the Introduction and Discussion sections of the article. You can pick a topic that was briefly discussed in the Introduction that you think would benefit the study. Also, authors will address limitations of their studies in the discussion, so you can pick a limitation and discuss an experiment on how you address this limitation.