12″ finished size (12 1/2″ Unfinished)

There are many variations to this pattern, as you’d see if you did a search. This is just one idea.

Main Fabric A: Dark Blue Coordinating Fabric B: Medium Blue Contrast C: Red Background D: White on white

General directions for quick half and quarter square triangle blocks.

To make quarter square triangle units: Place two squares right side together. On the back of the lighter of the fabrics, draw a line diagonally from corner to corner. Then another line diagonally from corner to corner, making an X. These will be cutting lines. Then 1/4″ on either side of one of the lines, draw 2 stitching lines on either side of the diagonal line. With two squares, right sides together, sew on the two outside stitching lines. Then cut into two halves on the line between the two stitching lines. Then divide those two parts on the other line. Press out and you will have 4, 1/4 square triangles. ner to corner. Then 1/4″ on either side of one of the lines, draw 2 stitching lines. 

With two squares, right sides together, sew on the two outside stitching lines. Then cut into 2 halves on the line between the two stitching lines. Press out and you will have 2, half square triangle blocks.

Directions

Center Square:

Fabric C: Cut 1 square, 3 3/8″

Fabric B: Cut two squares, 2 7/8″, divide diagonally to get 4 triangles.

Sew a triangle to one side of the square, matching the long sides of the triangle to the side of the square. Sew a second triangle to the opposite side of the square. Then sew a triangle to each of the other two sides of the square.

Corner Squares

Fabric D: Cut 4 squares, 4 1/2″

Side Squares:

Fabric A: Cut 4 squares 3 5/8″. Divide each diagonally into 2 triangles to get 8 triangles.

Fabric D: Cut 1 Square, 5 1/4″, Divide diagonally twice into 4 quarter-square triangles.

Cut 4 squares 2 1/4″, Divide each diagonally once into 8* half-square triangles.

Fabric C: Cut 4 Squares, 1 7/8″.

To one side of each fabric C square, sew a fabric D triangle, matching the short side of the triangle to the square. Then on each unit, sew a fabric D triangle to the adjoining side. Using the color photo as a guide, sew each of these D/C triangle units to a Fabric A triangle, matching short sides.

To each of the remaining Fabric A triangles, sew a Fabric D triangle, matching short sides. Refer to the color photo to make sure you have them on the correct sides.

Sew the A/D triangles together with the A/C/D triangles, matching long sides.

Square up each unit to 4 1/2″ and assemble the block as a 9 patch.

(*note correction)