Traditional quilts are composed of three layers: the quilt top, the batting, and the backing (or lining). In the picture below you can see these three layers. The first arrow (1) points to the backing. The second arrow (2) points to the batting. The third arrow (3) points to the quilt top.
To put together your quilt sandwich, find a large open area, such as a dining room table or open space on a carpet or flooring. I normally tape the corners of my backing to the surface so that they stay put. You will notice that the backing is cut about three inches larger on all sides than the quilt top.
Next, I place my batting, which is cut the same size as the backing, on top of the backing. Then I position the quilt top evenly on top of the batting, making sure it looks nice and square.
I’m a fan of 505 Spray and Fix for adhering the layers, since I do most of my quilting by machine. That’s not to say you can’t use quilter’s safety pins or some other method if you prefer. I simply find the 505 spray a great time-saving convenience, knowing I can reposition my quilt top or backing very quickly.
Go light on the spray; very little is needed. Also, work in a well ventilated room when using any kind of adhesive spray.
For learning purposes, it’s a good idea to try several methods of putting together your quilt sandwich until you find one with which you are comfortable.