Pair up the twelve Color 3 and twelve of the Color 1 Half
Square Triangles right sides together and edges aligned. Using a scant
1/4" seam allowance, now and throughout the block-making, sew
together twelve Half Squares. Press seams of each to the darker side,
and trim to measure 3-1/2" if needed. Repeat this process with
the last four Color 1 Half Square Triangles paired with the four Color
2 Half Square Triangles to make four more in that color
arrangement...on to Page 2!