Free Quilt Block Pattern
The Paradox quilt block is a nine patch design which would be a nice change of pace for quilting teachers to use. It features lots of half square triangles and some quarter square triangles. These two patches are used together to form what quilters refer to as three quarter square triangles since three triangles are used together to form the unit.
Look for the double pinwheels (or stars) that form when you piece it all together.