Here is some basic terminology of quilting:
Blocks: Blocks are the uniformly square pieces of cloth that can be unadorned or decorated using a variety of sewing techniques and other pieces of cloth. Several blocks are pieced together, usually by sewing machine, to form a quilt top.
Quilt Top: Big queen-sized quilts are ever popular, and it can take as many as 20 or more blocks pieced together to create the proper size quilt top. A quilt top looks like a big sheet and has no stitching on it other than the seams that piece the blocks together.
Sandwiching: Sandwiching is the assembly of the various layers of a quilt: the top; the middle, made of cotton or poly-fill batting; and the back, which is usually a cotton fabric. Some quilting guilds have basting frames, upon which they can stretch the quilt taut, with cotton batting and backing. The layers are then basted together with long stitches every few inches to keep the fabric from shifting. Other quilters simply lay the layers of material on the floor, stretch them tight and tape them to the floor before making their basting stitches.