I am taking a Wilton Tall Cakes class and I have to make a 10 inch double layer cake and a 6 inch double layer cake. I want to make sure I have this correct since I don't have much experience making tall cakes. Does this mean I bake a 10 inch and a 6 inch and tort and fill it, or do I need to make two 10 inch and two 6 inch?

I think for a class either one would work, but normally when someone says "double layer", they mean bake two 10" cakes and stack them with filling/icing in between.