Assemble the Block
1. Sew together two cream print triangles and two green print triangles in pairs (Diagram 1). Press the seam allowances open. Then join the pairs to make an Hourglass unit. The pieced Hourglass unit should measure 5" square, including the seam allowances. Repeat to make a total of four Hourglass units.
2. Sew together the four Hourglass units in pairs. Then join the pairs to make a block (Block Assembly Diagram). Press the seam allowances open.