Square and Half Square
Free Quilt Block Pattern
The Square and Half Square quilt block is technically a five patch design -- (as it is created using a 5 x 5 grid), but it will be constructed as an uneven nine patch for ease in the sewing process.
The name of this quilt block is a bit "lacking" I would say, as it alludes to the block being designed using only squares and half square triangles. However, there are a few quarter square triangles as well, and those patches are what forms the star in the centre of the block.
Although this block may look intimidating, it is quite easy to construct, as long as you pay close attention to sewing an accurate quarter inch seam allowance. Enjoy!