Hi Coleen, let's see if I can explain it. I am going to assume that you are finished with the knitting. You are going to "Sew center back seam" (this makes your finished piece into a tube) from the top of the hat to withing 3 inches of the bottom of the hat. Now turn it inside out so that the seam you just sewed is on the inside of the hat. Now sew the rest of the seam (the 3 inches that you left previous) down the rest of the way, finish off. Fold that portion up to form the "brim" of the hat. Does that help ?? Oh and Welcome to the knitting forum, we are glad to have you <img src="/images/graemlins/smile.gif" alt="" />
Eva