If I understand what you described, then yes. Whatever block pattern you have cut the pieces out for, you have to piece them first....piece the top. Then you sandwich batting and backing and quilt. Did the pattern call for fusible batting?(just curious)
There is a fusible grid method where you cut all your block pieces, fuse them to the grid and then sew the material on the grid (including the grid) row by row. See this Youtube demo here:
http://www.youtube.com/watch?v=1_ouaGvIno0