This Christmas Tree wall hanging or table topper, uses 2 1/2" squares. We will also make half square triangles using the one at a time half square triangle method. This makes a wonderful gift. I'm sure you will want to make more than one and in different colors. Supply list will be sent to all participants once we know class will run. About Jaki: Jaki Soper has been sewing and quilting for over 40 years. She is the owner of Quilt Studio 55, a local business that supports long arm services, studio classes, and custom quilt designs. Her classes are comprised of learning simple techniques which allow for truing up sewn units to achieve accuracy. If you are interested in mastering the flying geese units in the placemat class, or sewing with curves in the drunkard path class, then these classes are for you.