1. Cut 12- black 3.5" squares, 4- contrast color 3.5" squares, and 32 -white 1.5" squares
2. Sew the white squares (on the diagonal) to 2 opposing corners on the black and contrast color squares. Remember you may draw a sewing line but I just "eyeball" the seam. If you are going to deviate, :) like I always do, -from the straight line diagonal -always deviate to the center of the square NOT toward the corner or your square will not be the right size.
3. Cut the tips off the white squares 1/4" from the seam allowance.
Press open. Square up the unit to 3.5"
Have fun, if there are any questions please leave me a comment or email me.