Lay out 9 charm pack squares for each 9 Patch Quilt Block. Place the middle square for each row of your quilt block and place it right sides together with the left-hand side square.
Repeat for each row of each block – try to keep them in an order that makes them easy to put them back in the right place afterward. Chain piece these pairs of charm pack squares.
I decided to place my medium cross 9 Patch Block in the center with the light cross blocks on either side and the darker cross blocks on the top and bottom.