Stack the Color 1 and Color 2 4-7/8"
squares right sides together and edges aligned. On the top of the
back square lightly draw in the diagonal. Stitch 1/4" away from
the drawn line on both sides. Cut apart on the draw line. Press
seams to darker side. This will give you two half squares. You only
need one for this block. Trim to measure 4-1/2" if needed...