Why Director use story boards

Almost every director, at some point, draws a film frame to illustrate an idea. The storyboard happens with the last frame, the one finishing their idea, is drawn. The in between is the telling. This is all you need to get started. But to develop shooting boards, ones that you can take to the floor and film, you need to have lined up certain basic elements.
1. Location. Either with digital photos, sketches or overhead plan-view, have your location and sets at the ready
2. Develop an overhead view (like an architects diagram) of your blocking and staging. Use symbols for camera, character and elements
3. By understanding the geographic and architectural constraints you’ll be establishing your boards within a dramatic context and you wouldn’t have to resort to a series of talking heads
4. By combining both storyboards and over-head plans of camera movement etc—on the same page—you will be able to fill out in broad terms a clear series of images that will help to explain your intentions. Each can explain the other, should clarity wane
5. Before you draw a single frame, let your mind wander over the pictures you have, the diagrams and drawings. This is rehearsal.
6. Draw this as though watching an ant colony.
7. Draw your camera angles
8. Then you can begin by drawing rough sketches (later to finish) or draw the frames of what you have seen your cameras capture
9. Add footnotes to help explain either of these two elements. You now have three elements with which to explain your ideas: Frames, Plan view, Notes
10. Find inspiration from all around you. Art, Photography, magazines, comics, whatever it takes to create a series of frames that expresses your story but also your dramatic intent.