Welcome to the boards from Texas. Hope you enjoy this forum & get lots of help with your questions during your quilting journey.
I pull the backing taunt to the floor & then tape it down with masking tape or sealing tape all along the edges. Then I layer my batting on top of it & then my quilt top. Then I pin it all together. This seems to help me & was the first way I learned how to sandwich a quilt. Basting spray is a big help also.