This is a common way to do it, Eleanor Burns does(or use to do) it this way all the time. There is nothing wrong with it. But to have a more finished looking quilt it is common to make what is known as a sandwich. backing on the bottom, with right side facing out, batting, then the top. smooth the layers out, and baste closely. There are three basic ways to baste, sewing with large stitches, using safety pins(about every three inches, or the newest way, spray basting, the sandwich is basted as you layer with this method. I hope ths helped. If you use the search asking about sandwiching you will probably get a lot more input. Good luck.