For this block you will need:
8) 4" background squares
8) different 4" prints
Draw a diagonal line on the back of each of the background squares.
Match a background square to each of the print squares with the right sides together and the outside edges aligned. Sew 1/4 inch on each side of the drawn line. Cut on the line. Square each section to 3 1/2 inches and trim the excess points of the seams. Press toward the print.
Assemble the resulting 1/2 square triangles as pictured above to create the block.