Flash Frame-By-Frame Animation: Keyframe and In-Between Basics

With those points in place I can then place my cursor on that in-between frame (since it's halfway between, it would be on frame 4, between my keys at 1 and 7) and then use those points as guidelines to draw. Because I'm also keeping squash and stretch in mind and want to show the shape growing closer to flattening, I don't stick perfectly to the guides, but they do still help me keep everything positioned correctly. Once I'm done I can just set the guide layer to invisible so that it isn't showing over the animation.