Using the 1 1/2" LIGHT and 1 1/2" LIGHT/MEDIUM strips, make nine strip sets. Set five strip sets aside for later. Subcut the remaining four strip sets into 4 1/2" lengths. You will need 36.
Subcut the MEDIUM/DARK #2 strips into 2 1/2" squares. You will need 72.
Lay a MEDIUM/DARK square on one side of the above rectangle. Stitch diagonally, fold open, and press. If it helps you, draw a diagonal line on the wrong side of the square. However, you can save time by eliminating this step and using a line marked on your sewing machine. See my previous blog post on binding for more details about this method. Whichever method you choose, it is helpful to sew at least one or two thread widths off the line, towards the edge of the rectangle. This gives you a little more room when you flip and press. It doesn't hurt to sew even further off the line....you will use the rectangle as your guide when you press.
Be sure to start stitching in the corner that covers the LIGHT/MEDIUM fabric.
See how the corner of the square just follows the line, but is just a tiny bit over?
Fold back the square, and line up with the corner of the rectangle and press.