For block 4 you will need:
1) 6 1/2 inch polka dot square
6) 4 inch dark blue squares
4) 4 inch medium print squares
2) 4 inch small print squares
Match one of these to each of the dark blue 4" squares with the outside edges aligned and the right sides together.
Sew 1/4 inch on each side of the drawn line.
Cut on the line.
Square the resulting half square triangles to measure 3 1/2 inches.
Trim off the excess points on the seam and press toward the blue fabric.
Use the photo of the block st the top as a guide to assemble and sew the block together.