Nine patch quilt blocks are numerous and likewise, the "sister" block type -- the Uneven Nine Patch. Both can be simple or challenging, depending on the number of pieces in each quilt patch.

Nine patch blocks are comprised of nine units, laid out in three rows of three patches. This is probably the most commonly used type of quilt block made.

Nine Patch - Uneven

Formal Frame

Free Quilt Block Pattern

The Formal Frame quilt block is a simple nine patch block comprised of only squares, rectangles and flying geese units. This would be a good choice for a new quilter to practice the flying geese patches as well as working on your precise quarter inch seam allowance, especially for the patches containing the rectangles.

This block reminded me of the Folded Corners block, where the pieces look like a corner of the fabric is folded down to show the underside.

Depending on your choice of layout of the blocks, you can come up with some really interesting quilt designs. Here I have illustrated two examples.

Check out these "optical illusion" blocks:
~ Folded Corners
~ Garden Square