the first thing i spend my research points on is farming. those berries don't last very long, and you'll need the crops if you want to sustain your village. i don't worry about clearing the beach or building anything at all until after i have the crops. put your people on research and keep them at that table until you get the 6000 points you need for the next level of farming. and watch out for mushrooms that the kids can pick for extra food.